What makes the HF-11 special? For starters, this mid-engined, rear-wheel-drive beast weighs less than a Mazda Miata—coming in at a featherweight 2,000 pounds—but it delivers more than three times the power, thanks to a naturally aspirated flat-six engine. While it might be tempting to assume this powerhouse comes from Porsche, founders Nikita and Iliya Bridan have confirmed that the engine is of a completely different origin. This 4.5-liter flat-six cranks out a monstrous 650 horsepower, revving up to a heart-pounding 12,000 rpm.

The HF-11 comes with a choice between two transmissions: a traditional six-speed manual or a track-ready seven-speed sequential. To keep weight low, the car features a carbon fiber monocoque combined with a full carbon body, all sitting on forged centerlock wheels. For those looking for an even more tailored experience, Oilstainlab is considering a hand-beaten aluminum body—though it would only be available if the right craftsperson can be found to carry out the labor-intensive process.

Beyond its lightweight build and powerful engine, the HF-11 has the makings of a highly capable track weapon. A track-only variant is planned, outfitted with 18-inch wheels front and rear, along with Michelin Pilot Sport Legends slicks. The street-legal version, however, will feature 19-inch front wheels and 20-inch rear wheels wrapped in Michelin Pilot Sport Cup 2 R tires.

Despite its supercar status, the HF-11 doesn’t compromise on comfort. Inside, you'll find a wealth of amenities, including air conditioning, a digital rearview mirror, power and heated mirrors, and a reversing camera. The seats are adjustable, as are the pedals and steering wheel, ensuring even taller drivers (up to 6 feet 3 inches) will fit comfortably.

Each of the 25 units planned for production comes with a pair of custom helmets stored inside the doors, ready for track use. The car’s pushrod suspension with adjustable Öhlins dampers ensures both road and track performance, while the braking system features six-piston calipers with 394-mm discs at the front and four-piston calipers with 390-mm discs at the rear. A limited-slip differential and stunning butterfly doors complete the package.

In terms of dimensions, the HF-11 measures 170 inches long, 80 inches wide, and just 44 inches tall, with a wheelbase of 106.8 inches. Even with its monstrous power output, the car is expected to achieve reasonable fuel efficiency: an EPA estimate of 14 mpg in the city and 26 mpg on the highway, thanks to a 25-gallon fuel tank.

Oilstainlab’s biggest challenge might not be building the HF-11, but rather finding the 25 buyers willing to spend nearly $2 million in an already crowded market of luxury supercars. While its flat-six engine and lightweight design are undoubtedly enticing, Oilstainlab is still a relatively unknown player compared to legacy brands like Ferrari, Lamborghini, and McLaren.

Nevertheless, with its combination of cutting-edge technology, lightweight engineering, and track-focused design, the HF-11 stands out as a unique and formidable competitor in the high-end supercar arena. It’s a bold step forward for Oilstainlab, and the world will be eagerly watching as this next-generation supercar takes shape.