Among the rarest versions of the Porsche 930, this 1989 Porsche 911 Turbo Cabriolet was ordered with the factory Slant Nose or “Flachbau” option (M505) and delivered new to a member of the Monegasque Royal Family in Monaco where it still retains tax-exempt status. Finished in Guards Red over Black leather upholstery, it features optional supple leather seats with deviated red piping, a CD radio, cruise control, U.S.-spec safety and emissions equipment (C02), French-market yellow lights, and a 5-speed G50 manual transaxle with an optional limited-slip differential. Porsche only produced 26 U.S.-spec Slant Nose examples for the final model year and another 6 for Rest of World (RoW) markets. It was purchased by the current owner in 2008 and has been driven just over 900 miles since. Meticulously cared for by two owners, this highly original 930 Cabriolet Slant Nose is now being offered for auction out of California with 9,838 miles showing on the odometer.
The M505 Slant Nose option includes flat vented front fenders, boxed rocker panels, and side air intakes inspired by the 935 race car. This 930 Cabriolet was factory-finished in Guards Red with a black convertible soft top and rides on 16” Fuchs forged alloy wheels with body-colored centers. Equipment includes pop-up H4 headlamps with yellow French-market bulb, headlight washers, yellow H1 fog lamps, a front chin spoiler, Euro-spec side market lights, a U.S.-spec third brake light, a black boot cover, a dual-tipped exhaust outlet, and a “Tea Tray” rear spoiler. The seller notes the car has been kept in a climate-controlled facility for the past 16 years and was fastidiously maintained, having its fuel drained and replaced to prevent corrosion during periods of storage. The power convertible top was routinely operated to ensure functionality, and the tires were replaced in 2008. The seller adds that the car remains beautifully preserved with the factory-applied labels and Cosmoline undercoating intact.
The cabin features black leather upholstery including optional power-adjustable supple leather seats with deviated red piping. It comes equipped with a Porsche-crested black leather steering wheel, black carpet mats with red edging, power windows and mirrors, air conditioning, a leather-covered heater control, a central locking system, cruise control, and a Porsche CD-2 stereo. The interior is described to be in excellent condition with all gauges and accessories working properly.
The turbocharged and intercooled 3.3-liter flat-six engine was factory-rated at 300 HP and 291 lb.-ft of torque. Power is sent to the rear wheels by way of a 5-speed G50 manual transaxle and an optional limited-slip differential. The car is supported by a service history documented in the original warranty booklet from Monaco. The seller notes the engine has been started on a monthly basis for mechanical exercise and there are no outstanding maintenance items at this time.
This 930 is offered with a bill of sale, owner’s manuals, a stamped warranty booklet, a toolkit, a spare tire, an air pump, and a clean title.
Comments (46)
Sold for $329,000
Nothing at the finish. Surprising
To keep with the holiday spirit, my 930 is going home with somebody today. The high bidder will have it before Christmas. I wish all of the bidders good luck in the final hour.
I wanted to share a little bit about my procedure for the last 17 years for the 505.
Every month the car is started and it goes all the way to temperature. I normally take it up my private driveway and maybe in front of the house just to get a little air under the car.
Every year 100% of the fuel is removed. At no point in time is there more than 1 gallon of fuel in the car. The sender is removed and that way and inspection can be done at the same time.
Attached, you will see photos of the bottom of the fuel tank, showing absolutely no corrosion, and that fuel is approximately eight weeks old. You can also see the date code of October 1988 on the original sender that works flawlessly.
I have always taken great care in making sure that everything functions correctly. Hopefully these photos will show my level of compulsive maintenance.
Again, I’m here to answer any and all questions through the end of the auction.
Thank you, Christopher
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@930S Thank you for reaching out. As far as I know the 1987 and 1988 cars all came with the black third brake light. Personally, I have never seen a 1989 not come with a color matched unit.
The 1989 930 turbo cabriolet slantnose with the tan interior that sold 12 weeks ago at Broad Arrow I believe came with a red painted unit. That car sold for $392,000.
Something to keep in mind, the buyers premium at Pcar is $5000.00, at the other auction houses you would be looking at a final value buyers premium of approximately $40,000. They also force just about 10% in sales tax unless you are a dealer or if the car is being immediately exported. The money you save in buyers premium you can turn around and your bid can increase here at PCar.
Possibly due to the very low mileage on my car for sale the third brake light is in perfect condition with no cracks or damage. I’m sure if you hunt somebody has a new old stock unit for your car. If you have any other questions or comments, please feel free to send them over.
Thank you, Christopher
Bid in the amount of $329,000
Bid in the amount of $327,000
Bid in the amount of $326,000
Bid in the amount of $325,000
Bid in the amount of $320,000
Beautiful example of a very original slant nose. I have a 1988 Guards Red/Champagne example. I have been using your photos to compare against mine. I noticed that your third brake light is painted. On my car, it is unpainted black plastic. I was at the Jets and Cars event during Monterey Car week this past August. Broad Arrow sold a 1988 Guards Red/Champagne slant nose there for $320K. I have a video of the sale. I noticed that that car also had an unpainted third brake light. Do you know it this was a Porsche change from MY1988 to MY1989?
These third brake lights are fragile and break over time. My light is broken at the base and is difficult to find a replacement. I have found white plastic ones that can be painted but so far have not been able to find an unpainted example.
Bid in the amount of $260,000
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Something I wanted to clarify was the process used to detail my 505. This car has not been sent out for dry ice, laser cleaning or had any type of color correction.
When I was a teenager, my mother would get very frustrated because her very expensive wood handled Williams-Sonoma horse hair brushes to clean fine china would go missing. I would always use those even 35 years ago to detail the family cars. Of course never exchanging one that would be used for the wheels with another that would be used in the engine bay as to not cross contaminate.
Some things in life don’t change. My very skilled detailers have never been allowed to even wash this car, I have always taken care of every single detail myself.
When you look at the engine bay or the front trunk, only a very mild detailer spray is used with clean microfiber towels. Please take a look at the anodizing of the headlight mechanisms, the condition of the strut towers and all the surrounding components. I have always treated this car as a piece of art.
There is a 3 inch dark mark where the spare tire fits in. There is a factory piece of solid rubber that fits in that exact location, but it was out for the photos.
If you have any questions or would like some additional photos, please let me know.
Thank you, Christopher
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Bid in the amount of $256,000
Bid in the amount of $255,000
All of the wheels are original and unrestored. They all show the correct date codes, marking and staggered front to rear.
I would be happy to post photos of all four wheels, but I found that to be rather redundant.
Nothing on the car has been replaced, updated, repainted, restored, or modified.
If you are looking for a time capsule that started its life in Monaco, and I consider myself to be the caretaker for the last 17 years, there is no finer example.
Again, if you would like to see any detail, no matter how small it is, please let me know.
Thank you, Christopher
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I wanted to share a little bit about the overall condition of the engine bay and the originality.
There are two amazing cars that were listed with RM and also another car on a private treaty sale. All of them show the engine patina to be consistent and almost identical to mine. In comparison, a recent car came up with a very bright engine bay and I feel I need to explain.
In 1989 the cosmoline was applied to the fan as well as the shroud and over the last 35 years they have formed a wonderful patina. When you see a freshly anodized gold fan strap and other components clearly they are not original.
As a collector, a vehicle can only be original one single time. Every single bolt and component in the engine bay is original and unrestored. Everything is so clean that you can use a white glove and not find a mark anywhere. As a collector, originality is extremely important to me.
Please review the photos of the original sound pad, the original fan and housing and of course the original unrestored intercooler and long neck.
All of the cars that have sold recently are quite amazing but I feel it is important to differentiate between restored and original.
A good example is the intake that I showed in one of the last photos. Nothing has been cleaned or “made pretty”. This is the original wonderful condition. That is a solid representation of the entire 505.
As always, if you need additional photographs or information, please feel free to reach out. I am here to help find a wonderful home after the car has been with me for almost 2 decades.
Thank you, Christopher
Bid in the amount of $191,000
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Most beautiful iteration of the 911 model and completely hand assembled.
Bid in the amount of $190,000
@Proffittaf Thank you so much for the question and touching on something that is very important. The 505 has “tax paid in Monaco” status. This is supported both by Bonhams and the registration documents that will accompany the car.
When I purchased the car in 2008 from the Silverstone Classic in the UK, I imported the vehicle into the port of Long Beach on an extended import. Thank you very much to G&K automotive and conversion, and my uncle George for the guidance. The 505 has never been registered in the United States but the Carfax will show the import. To answer the question quickly, the 505 can be registered in all 50 states without an issue, and I would be more than happy to assist the high bidder.
Tax paid in Monaco from what my import companies have shared with me exists as long as the car was not re-registered while in the United States. You can ship the car back to Monaco and save the 26.5% import charge.
At the same time right before the car was sold at the Silverstone, the car was re-registered in Jersey (not the United States Jersey but the small island south of the UK located on the northwestern corner of France).
My 505 was frequently used between Monaco and southern France. Before the sale at Bonhams, the car was registered in Jersey right off shore of northern France. The license plates on the car represent the current registration, but MOT would be required after all of these years.
UK import is currently at 28% and that would be as we understand also a tax exempt import. Again, you would need to have a current MOT certificate to put the car on the road.
This allows a $70,000 savings if the car was going to go back to Europe. I have several exporters that I can recommend that I have worked with for many years.
If anyone needs any further details, please feel free to reach out. The rules for international import and export are always changing, but I have a very good understanding as to how to do things correctly.
Thank you again, Christopher
hi there, I understand from the information provided that this automobile is registered in Monaco, and enjoys tax-exemptstatus: how does that work for re-registering in, say, a European country? Would the tax exempt status remain, in your experience?
Since we were going over stickers, I wanted to show that all of the factory stickers are in place throughout the car. None of them have been replaced and they are all 100% original.
An interesting note are the part numbers on the fiberglass covers around the headlight mechanisms. A little known fact is that Porsche never printed the correct label so they printed these on a very thin paper probably from a desktop computer. You almost never see these stickers remain. The only sticker on the car that is damaged is the thin paper part number on the fiberglass panel that you would have to remove to replace the battery. My best guess is that decades ago somebody rubbed that sticker in the process.
Another interesting fact, you know those are real because Porsche accidentally printed them upside down!
Again, nothing you see is a reprint or a reapplication. The 505 truly shows as a complete and original piece of Porsche art.
I will have another update for everyone in the morning.
Thank you again, Christopher
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Something I wanted to clarify was the condition of the engine and transmission white hologram sticker showing the Vin number.
I personally did not even know that there was a Vin sticker on the bottom center of the G 50-50 five speed transmission. A friend of mine at Porsche motorsports told me to go look for it when I was asking about the total number of white vin stickers.
When I took the photo, that area was masked off by myself personally because I did not want to disrupt the sticker. Since the photo was taken, I did go in and clean up the surrounding area and removed quite a bit of the surface debris, simply using distilled water and some Q-tips. Every single time the transmission heats up that sticker becomes more fragile and that’s why you never see them. Also, being at the very bottom of the transmission, any type of rain will impact the sticker.
I will leave it up to the new owner if they would like to clean it further, and maybe put a clear heat resistant sticker over it, I simply did not want to change the condition.
In a similar way, the engine vin number hologram sticker is right at the bottom where the two half's of the engine case meet. Every single time there is a heat cycle, the sticker becomes more impacted. That is why you never see these stickers and even the Porsche classic center had no idea that the engine and transmission hologram stickers even existed.
My goal was to preserve and not modify anything, that is why I left the stickers as is. If you look closely, the complete Vin numbers are legible on both stickers. At the same time, the Porsche certificate has certified that the engine number and transmission number are original and correct.
I have always viewed my Monaco 505 as a piece of art. Because of that, I am not willing to make even the smallest of changes. Hopefully the bidders and future owner will appreciate my decision to conserve.
Thank you, Christopher
I just updated the auction with multiple photos of the odometer. As you can see, it is stamped October 1988 on the side and also on the rear. The blue green sealant is still on the assembly bolts.
Also, I attached 10 of the 12 white hologram stickers that show the Vin number. I will need to photograph the remaining two stickers tomorrow with better lighting because they are on the inside rear fenders.
I apologize for the driver side front fender photograph. The white sticker is complete in length, but I simply cannot get my scope to show the entire sticker. I think I just got lucky on the passenger side.
Hopefully these will clarify the bumper and odometer question. As always, no question is too small and I welcome any comment or question.
Thank you, Christopher
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@Tcb1969 I could not agree with you more! I would be happy to put a big red bow on it, and it certainly would make an amazing holiday gift.
Now THAT’S a sleigh!
As a collector I pride myself on 100% transparency and honesty. As many of you probably know, my 505 was at the Audrain concourse the first week of October. I have purchased many wonderful pieces from Bonhams for 30 years starting in my early 20s. My 505 originally came from the Silverstone classic In the UK 17 years ago.
The sentimental side of me said I would like to have the 505 “go full circle”, probably being sold back to Europe. Unfortunately, the 7000 full size beautiful catalogs that Bonhams promised were never printed. They only built approximately 100 pocket guides that were given to the people at the Audrain. So long story short, nobody in the world knew the car was for sale. Bonhams and I have resolved this and they have made some concessions to make things as right as they can be. In all honesty, I knew in my heart I should have gone to my partners at Pcar. I apologize to everyone for the confusion, but I am human and I made a mistake.
I wanted to get that out in the open before I start diving into the wonderful details about the car, the flawless condition and how I have taken care of the 505 personally for the last 17 years.
If anyone has any questions, please let me know.
Thank you again, Christopher
Bid in the amount of $140,000
Live the slant nose. And G50 transmission
@JohnBlackyoldtimer Thank you so much for your questions. The 1989 505’s were at the very end of the run for Porsche. They had higher expectations based upon the 1987 and 1988 orders. But as most of us know, the recession did not help Porsche in 1989.
The final cars were built as C02, that gave them global compliancy. Cars that were destined for the United States were primarily C03, California compliant. Yes, there are a few anomalies, but that was Porsche in 1989.
My 505 is well documented from Bonhams as originally registered in Monaco and no modifications have ever been made. As an example, you can look at the two cars sent to Saudi Arabia. One is a 505 and the other is a 506. Both retained miles versus kilometers. Neither one of those cars or my car came with European bumpers. In all honesty, I don’t think any single car did.
I will be happy to remove the speedometer and post photos of the date codes. The bumpers have never been removed, modified or replaced. Both bumpers also have their white Porsche hologram Vin number stickers on them. I will be posting the entire batch of 12 matching hologram white stickers, because every single one is intact.
This is exactly how Porsche built the end of run cars in 1989. Not only has Bonhams certified the originality, but so has Dieter at Andial. While they closed a few years earlier, he always took care of all of my air cooled cars.
I will also be uploading dozens of additional photographs of the bumpers mounts front and rear to show. They have never been touched at any point in time.
If you have any further questions, I would be more than happy to help. No question or request is too small.
Thank you, Christopher
You write that the car was delivered to Monaco and later to LA. Was the speedometer replaced? In Europe/Monaco, speedometers only show km, but now they show miles. Were the bumpers replaced too?
The video does not demonstrate skill ;-)
Bid in the amount of $115,000
Bid in the amount of $66,000
The funny part in the cold start video is not how you almost dropped your phone but that the driver didn't know how to correct the angle of the car to extract it from the carrier. At the end it looks like he just gave up.
Bid in the amount of $65,000
Hello and thank you to everyone looking and bidding on my 1989 930 505. I have been in discussions with PCar for almost 2 years deciding to let my 505 Porsche find a new home.
Over the next several days, I will be posting at least an additional 150 photos. I will be sharing more about the wonderful history of the car. Originally owned and registered in Monaco to the Royal family, I purchased the vehicle 17 years ago from Bonhams. I had the car shipped in a single use container and the car was delivered February of 2009 to the port of Long Beach, California. The majority of the 900 miles that I have put on the car in the last 17 years primarily happened within the first 18 months. There are no modifications made to the car, no replacement parts and everything date codes correctly. 100% original paint with no repairs and the interior is so complete it comes with the original red piping on the front and rear carpets. The seats are also piped in Can Can red from factory, a subtle but elegant option.
I invite everyone to request photos of anything they would like to see and I would be more than happy to answer everyone’s questions.
Until the next update, please review the cold start video even though it’s a little long. The 930 was sitting on the transport carrier for several days in the freezing cold, and not on a charger. You can also laugh at me falling off the back of the Passport Transport carrier at about the three minute mark. There was only one opportunity to get a cold start video like this, so the show had to go on.
Again, I look forward to everyone’s comments, questions and requests.
Thank you again, Christopher
Bid in the amount of $50,000