If Oilstainlab rings a bell, it's probably thanks to the Half-11, the half-sized, Sixties and Seventies motorsport tribute driven by Rob Dahm for Top Gear last year. But that was merely the warm-up act. The HF-11 takes things to a whole new level.

The car is built around a bespoke carbon monocoque, the result of a painstaking 3,500 hours of development over two years. The chassis provides modern safety and tech without compromising performance and it even accommodates a driver up to 1.91 metres tall, with a helmet on. A little dig at Lamborghini’s Temerario, perhaps?

The cabin promises not only great visibility but also easier ingress and egress than many of its rivals. But the real magic lies beneath that lightweight shell. The HF-11 offers two powertrain options. 

Option one? A mid-mounted, petrol-powered flat-six engine belting out 485 kW (650 metric horsepower), hitting that stratospheric 12,000 rpm redline. You can pair this engine with either a six-speed manual gearbox for purists or a seven-speed ‘quick shift’ sequential for those chasing quicker shifts.

Option two is an all-electric setup, with Oilstainlab working on an 80 kWh battery and a staggering 597 kW (800 metric horsepower). What’s more, the team has developed a "quick swapping system" to alternate between the two powertrains still in early stages, but the ambition is clear.

And weight? Both versions tip the scales at under a tonne. The electric HF-11 comes in at a nimble 953 kg, while the flat-six model weighs just 907 kg. That, combined with those power figures, should make for a seriously quick machine.

This car is the brainchild of brothers Nikita and Iliya Briden, and they’ve been clear about their mission: to deliver “grin-inducing analogue driving.” To achieve that, the HF-11 features ground-effect aero with a minimalist design, making for a sleek, compact, and aerodynamic silhouette.

As Iliya explains, “Five years ago, we knew to define our future we needed to build our past the Half-11 Prototype, a vehicle that would defy reality. In the years since, we’ve distilled that vision, driving ourselves half-mad in technology and engineering. And finally, today, we are proud to reveal our maniacal HF-11 to the world.”

Only 25 examples of the HF-11 will be made, with 11 of those featuring a special ‘Maniac’ pack. Starting price? A cool $1.85 million.