The De Tomaso P900 is a track-only hypercar built around one of the most extreme naturally aspirated V12 engines ever made. Based on the P72 road car but stripped for the circuit, the P900 adds a redesigned front splitter, dive planes and an active rear wing. Only 18 examples will be built, each reportedly priced at around 3 million dollars, and De Tomaso even sends support engineers to your track days. Here is a first look at the specs, the engine and where it sits among the great hypercars.

What engine does the De Tomaso P900 have?
The headline is the powertrain. The P900 uses a bespoke naturally aspirated V12 that weighs roughly 485 pounds (220 kg), which De Tomaso calls the smallest and lightest V12 it has ever developed. As detailed by Motor1, the engine revs to a screaming 12,300 rpm and the production unit is rated at around 900 horsepower, fed through an Xtrac sequential gearbox to the rear wheels. Early customers could even option a V10 from the 1997 Benetton B197 Formula 1 car, producing roughly 750 horsepower, while the final V12 was completed.

How fast and light is the P900 supercar?
Weight is where this track hypercar truly stands apart. The car tips the scales at about 1,984 pounds (900 kg) dry, giving it a power-to-weight ratio close to one horsepower per kilogram, the same headline figure that made the Koenigsegg One:1 famous. De Tomaso says the P900 will be roughly as quick as an LMP prototype, and notably it skips electrification entirely, leaning instead on synthetic fuels to chase carbon-neutral running. The official De Tomaso P900 page frames it as a purist's analog answer to the hybrid hypercar era.

Explore hypercars at TheArsenale
The De Tomaso P900 is a reminder that the analog hypercar is far from finished. If that V12 spirit speaks to you, TheArsenale curates a roster of equally rare machines. Browse the full cars collection, then explore the F1-inspired Delage D12 hypercar, the monstrous Devel Sixteen V16 hypercar and the Italian Frangivento Asfane Diecidieci.
Photo: DE TOMASO