This 1966 Mini Mk1 has undergone extensive modifications, featuring performance upgrades and period-inspired details. Acquired through Jet Motors in Portland, Oregon, in 2014, it was built to excel in autocross, car shows, and spirited street driving. Powered by a custom 1380cc inline-four paired with a close-ratio 4-speed manual transmission, this example is refinished in blue over a black interior. It features Powermax pistons, a full race cylinder head, a Maniflow twin sliencer exhaust, 10” Mamba wheels, bucket seats, a Bluetooth radio, and much more. This tastefully modified Mini Mk1 is now being offered for auction by its seller out of Louisiana.
![]()
This example was sanded and refinished in 2017 in blue with a contrasting white roof, with rust prevention previously applied to the undercarriage by JET Motors. Exterior details include Wood & Picket fender flares, a genuine Morris Cooper S grille with “mustache” and whiskers, and stainless Cooper S bumpers. Glass Mk1 Cooper S turn signals and GT 300 bullet mirrors have been fitted along with a pair of auxiliary driving lamps mounted to the front bumper. It rides on black-finished 10” Mamba wheels with polished lips, wrapped in Yokohama A-008 tires, with an additional set of wheels and unused Hoosier DOT tires included. Detailed images are provided in the gallery.
![]()
The right-hand-drive cabin features GT Classic Sebring bucket seats trimmed in black leather with Pascha-patterned inserts, secured by Ariel Atom four-point harnesses. The rear area has been stripped and fitted with a rear seat delete and a Safety Devices roll cage with harness bar, while sound deadening was added during the build by JET Motors. A custom pigskin suede dashboard incorporates original Mini instrumentation alongside Auto Meter Sport Comp gauges, including an air-fuel ratio meter. Additional equipment includes a Momo Alcantara Hot Wheels limited-edition steering wheel, Sparco pedals, a Bluetooth radio, Newton Commercial interior panels, black carpeting, and a polished stainless rearview mirror. The seller notes the odometer stopped working in 2018.
![]()
Power comes from an Austin Mini 1275 GT block offset bored to 1380cc with Powermax pistons, Cooper S rods with ARP bolts, a nitride Cooper S crank, a Kent Performance cam, Elgin cam followers, roller rockers, and a full race cylinder head with Rimflow valves. Induction is handled by a single HIF 44 1.75” SU carburetor, while exhaust flows through a Maniflow twin sliencer exhaust, with a stainless steel exhaust system included in the sale. Additional equipment includes a Pertronix electronic ignition, a high-output alternator, a JET Motors high-torque starter, and an aluminum radiator with Kevlar hoses. An additional electrical radiator fan is also included. The front wheels are driven through a Cooper S close-ratio 4-speed manual gearbox featuring Hardy Spicer drives, heavy-duty CV joints, an ultralight flywheel and backplate, a cross-pin differential, and a KAD quick-shift kit. A super stabilizer kit is also fitted, and the car has been dyno-tuned by Huffaker Motorsports to produce over 100 HP. The seller also highlights the KAD Front and rear swaybars, the suspension is a Mini Sport fully adjustable front and rear suspension with Bilstein shocks, the brakes have been rebuilt incorporating front S-specification calipers and rear Alfin drums. Additionally, the rubber cones have been replaced with a Fortech-approved coil spring conversion kit.
![]()
This sale will include a spare tire, a left-hand-drive conversion package, an extra set of wheels & tires, and a clean title.
The seller would like you to know: “This little car has an attitude with an unbelievable sound. It is an attention grabber wherever you go. This Mini has been very dependable. It is very well sorted. The car is always happy, whether on the street or autocross track.”

Comments (47)
Congrats @Mikup. Enjoy your new mini.
Sold for $20,750
Bid in the amount of $20,750
Bid in the amount of $20,500
Bid in the amount of $20,250
Bid in the amount of $20,000
Bid in the amount of $19,000
Bid in the amount of $18,750
Bid in the amount of $17,500
Bid in the amount of $17,000
The flares appear to be held on by rivets underneath. I believe there is a little trim around the car that they are riveted to. Done by previous owner.
@ Gopherbroke
It is the VIN I got with the car. Check the underneath video. The red cable is the battery cable. I have a cutoff switch next to the shifter in the cabin and you see the red cable going to and from this. No issues I can tell.
How are the wheel flares attached? I am used to seeing a rubber strip between them snd the body to prevent cracking? Is this the original VIN? I know these got changed often when importing these cars to the states. Any issues with proximity of battery cable to exhaust? Sorry for the late questions. Just popped on my radar!!
Bid in the amount of $16,500
Bid in the amount of $16,000
Bid in the amount of $15,500
Bid in the amount of $15,000
Bid in the amount of $12,500
Bid in the amount of $12,000
Bid in the amount of $10,500
Here we go into the last hours of the auction on this 1966 Mini Cooper.
First let me thank everyone for their interest on this car. I hope I have answered everyone’s questions with the pictures and video posted. I will be glad to work with the winner of this auction with shipping schedule and preparation. All the extras should fit in the car or I will ship them out if necessary.
I have always found things you experience at a younger age sets goals for later. I can still remember seeing a classic mini ripping around an autocross track. It demanded everyone’s attention. It gets the same attention at Cars and Coffee. My brother has always said “If a car is capable of changing somebodies mood, and they aren’t even driving it, then it’s a good car.”
To me this car fits that mold.
Thank you everyone for your bids and to all those who viewed this no reserve 66 Mini. GLWTA!
Bid in the amount of $10,000
@ Mrcrankit
Checked with my mechanic on your questions and this is what I got.
No heater and do not have parts.
No 4 bolt center cap setup.
Believes the drive ratio is around 3.85. I looked at video and guessing the RPM is around 3800 at 55mph. The suspension change and the kit for making the suspension fully adjustable was to set it up for the street and autocross. Also the change in the camshaft was to make it better for street. The racing cam it came with made for a rough idle. At night the alternator could not keep up at idle. :)
Bid in the amount of $9,000
Bid in the amount of $8,250
Bid in the amount of $7,800
Bid in the amount of $7,250
Bid in the amount of $7,000
Bid in the amount of $6,000
Bid in the amount of $5,750
On the speed with the close ratio gears question, the speedometer is not working properly. I can maybe get a reading off of a gps app.
The car definitely is harsh over large bumps, but I have a much later mini with the stock suspension and it launches you over large bumps. Not sure how a car with that short of a wheelbase can do otherwise. That is the only comparison I can make. No notice of frame damage but you can look over the photos and video and let me know if there is something else you would like to see.
It appears this car has no heater. Do you have those parts? Does this engine have a 4 bolt center cap setup? Given the close ratio 4 speed, what rpm are you running at 60mph? The steel coil suspension springs can coil bind over large bumps and cause subframe damage as well as a harsh ride and rattle when unloaded over a bump. Have you noticed any of these concerns?
Bid in the amount of $5,500
Bid in the amount of $5,000
Bid in the amount of $4,500
@ Mrcrankit
Pictures posted on the roll hoop. The bolts connecting the bars and the bolts holding the roll bar to the wheel housing is shown in one. The other mount is behind an interior panel, so I took a pic of the bolts from the bottom of the car.
It has been titled, registered and plated since 2014. No problem here getting that done. Passed inspection for a inspection sticker. Can only speak for Louisiana. Not sure what mods would keep it from being registered in other states. This car came through Jet Motors in Happytown, Oregon. He has a shop full of them at all times. Curious. What mods would keep it from being registered in your state?
I know this is a long shot — was the car street legal in Louisiana? Were mods done that might keep it from being registered in other states? Forgetting California.
The roll hoop is bolted on.
Is the roll hoop bolted or welded in?
Bid in the amount of $4,000
Bid in the amount of $3,750
Bid in the amount of $3,500
Not sure how to read the date code on these tires but these tires were on the car when bought in 2014 and the Hoosiers were purchased shortly after so they are both dated out. The car stayed in a climate controlled garage which should have helped the life. The Hoosiers still have the labels on them. There is not much choice in 10 inch tires but I figured the new owner can choose his or her tire. I was not concerned running them on the street.
Am I reading the date codes on the tires correctly? 1968? Or is that 1988/1998?
Bid in the amount of $1,000
Bid in the amount of $500