OilStainLab’s HF-11 Nears Production: It’s Bright, Bold, and Brutally Fast
A year after the UK debut of their rebellious ‘Half 11’, California-based performance outfit OilStainLab has now revealed what it's calling a pre-production prototype of its wildly ambitious HF-11 supercar — and it’s hard to miss, finished in a striking shade called Negroni Orange.
This new iteration is reportedly 99% finalised, offering the closest look yet at the version soon to enter very limited production. The performance goals from the initial concept remain intact. That means a targeted weight of under 953kg for the electric model, and a leaner 900kg for the internal combustion version.
And about that ICE model — it packs a mid-mounted flat-six that traces its roots back to historic motorsport powerplants. Buyers will have the choice between 4.6-litre and 5.0-litre configurations, starting at 600 horsepower and climbing all the way up to a staggering 1,200 horsepower in the highest-spec variant.
The top-tier version will spin up to an astronomical 12,000rpm. That power is routed to the rear wheels through either a six-speed manual gearbox or a seven-speed sequential with quick-shift, backed by a limited-slip differential for serious traction.
OilStainLab hasn’t neglected the electric front, either. A fully functional EV prototype has already been built, and the final production model is expected to deliver 800 horsepower from an 80kWh battery. Just like the petrol version, it will feature rear-wheel drive and a six-speed manual — an uncommon and welcome choice in the EV world. Both versions aim for 0-60mph in around three seconds.
Underneath, the HF-11 features a thoroughly motorsport-inspired chassis: inboard pushrod suspension with double wishbones front and rear, custom Öhlins dampers, and CNC-machined aluminium uprights. Braking is equally serious, with six-piston calipers clamping 394mm discs up front, and four-pots on 390mm discs at the rear.
The carbon fiber monocoque is being built in partnership with Crawford Composites, a North Carolina company with a résumé that includes Le Mans prototypes, IndyCars, and other high-level motorsport machinery. Needless to say, they know their way around lightweight, high-stress carbon structures.
Visually, the HF-11 embraces its performance-first ethos. The bodywork is sculpted for downforce and function, with a visible rear powertrain, aggressive aero components like splitters and diffusers, and a wide, low stance. OSL claims the car can generate up to 589kg of downforce at 150mph.
The interior carries the same no-nonsense philosophy, entered via a dramatic Le Mans-style swing-up door. Inside, it's stripped back but driver-focused — five analog gauges, a digital screen, carbon fibre trim, and a digital rearview mirror with a reversing camera. Customisation is part of the package, allowing owners to tweak the layout and finishes to their liking.
Just 25 units of the HF-11 are planned for production, with pricing starting at a hefty $1.85 million. Each one will be built to spec, and while there will be other colour choices, we’d say Negroni Orange is the one to have — because if you’re going to own something this extreme, you may as well make it loud.
