Simpson-Ferrari V12 GTR: A Unique Blend of F40 and 550 Maranello

This extraordinary vehicle is set to go under the hammer with Iconic Auctioneers later this summer.

Believed to be the only ‘official’ factory-backed V12-powered F40, Britain-based Simpson Motorsport built this car in the late ‘90s in collaboration with Ferrari. The heart of this beast is a naturally aspirated ‘F133’ V12 engine, coupled with a Hewland six-speed sequential manual transmission. While specific technical details haven't been released, it's expected to deliver significantly more power than the 550 Maranello’s standard 479bhp and 420lb-ft of torque.

The engine, visible through the F40’s transparent cover, is a sight to behold. Although enthusiasts might miss the off-boost turbo flutters of the original V8, the V12’s melodious roar is a worthy trade-off, considering the 550 Maranello is renowned for its exceptional sound.

Mechanically, little is known about the upgrades aside from the engine swap. The chassis comes from an original, crash-tested F40 and has been entirely rebuilt for racing. Custom suspension components are fitted at each corner, supporting a body that has been lightened and strengthened with GTE-grade F40 panels, including front and rear splitters. 

Inside, the car is all business with an FIA-approved roll cage behind the single front seat and a dashboard adorned with motorsport-related buttons and switches. It's advised to get some proper training before experimenting with these controls.

The Simpson-Ferrari V12 GTR has participated in various European competitions, including a second-place finish at a Britcar event at Oulton Park in 2006. Despite its less-than-stellar racing history, its uniqueness and rarity make it a fascinating piece of automotive history.

If you’re tempted to own this one-of-a-kind machine, it will be auctioned at the Silverstone Festival in late August. The guide price is around £600,000—comparable to a fully equipped SF90. Quite the decision for any Ferrari enthusiast!