This Mazda Prototype Chassis Is The Ultimate Engine Swap Candidate

When Grand-Am and the American Le Mans Series merged to create the modern top-level IMSA series in 2014, Mazda took the opportunity to return to prototype racing with a diesel-powered Multimatic LMP2 car. The program flopped until it became a more traditional gas-powered car run by another DPi-class team years later, leaving the two-car SpeedSource team with three unsuccessful factory prototypes to sell without engines. One of these cars was given new life at the 25 Hours of Thunderhill, but at least one of the chassis has remained unused until now.

Yes, this is a Multimatic built Lola B12/80 previously raced by Mazda in the top class of IMSA with no engine listed on Bring A Trailer as if it were an old collector’s car.

Rebuilding a custom engine into a prototype, especially one like this that comes with a racing sequential transmission already installed, can be tricky. That doesn’t make it impossible. The only ex-SpeedSource Mazda known to have ever been converted for other use was given a Hayabusa-based V-8 by JFC Racing and then actually raced at local events all over California. The construction was far from easy, but this work can be repeated for any engine that fits between the tub and the transmission.

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The possibilities are limitless. Should the new buyer prioritize predictability and get a Honda K-Series engine in the rear? Should they pay homage to Mazda’s history of Le Mans victories with a custom rotary build? Are they so ambitious that they think they’re succeeding where Mazda failed, by making it a working diesel-powered prototype again?

Bidding can reach $69,000 with just over a day remaining. If you win the car, tell us what you plan to do with it.

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