Any number of road-legal track day cars are available for sale, especially in Europe, and many have adopted somewhat formula-car-like packaging. But few, if any, come as close to the reality of a formula car as the a.d. Tramontana, and now the company released full photographic details on its even more sinister R-Edition variant.

The R-Edition adds even more racing credential to the car, with carbon fiber throughout, big brakes and adjustable ride height for getting back home again. Going through the list of components of the base vehicle, it's hard to find areas for improvement, and in many respects the R-Edition is left untouched.

Reading through the standard car's spec sheet is enough to get any gearhead's juices flowing: a mid-mounted dry-sump twin-turbo v12 engine displacing 5.5L generates maximum output of 720hp (529kW) at 5,750rpm and 680lb-ft (920Nm) of torque at 4,000rpm. For times when 720hp seems like a bit too much, a switch can turn it back to a more docile 550hp (410kW). The same basic powertrain is found in the R-Edition, though since the company has room to lovingly hand-build only 12 of these cars each year, almost anything is up to owner customization.

The mid-engine rear-wheel drive configuration is sandwiched into a 100% carbon fiber chassis, and power is routed through a six-speed sequential gearbox. The standard Tramontana isn't exactly heavy at 2,990lb (1,362kg), but the R-Edition is 202lb (92kg) lighter, or about 2,800lb (1,268kg). That gives the roadster a power-to-weight ratio of just 3.88lb/hp (2.39kg/kW), enabling acceleration to 0-62mph (100km/h) in a very likely traction-limited 3.6 seconds, 0-124mph (200km/h) ticks by in just 10.15 seconds and the R-Edition carries on to a top speed of 214mph (345km/h). Weight is distributed 42% front/58% rear for balanced cornering and braking dynamics.

Fat 345/30 rear and 245/35 front tires wrap the 20in rims to provide enough rear grip to handle the raucous horsepower of the V12 engine, while a quick steering rack ensures responsive and direct handling. Bringing the show to a halt are a set of 380x34mm carbon ceramic discs and six-piston calipers at all four corners. Despite all of the high-performance leanings of the car, there is still 55L of storage space and a well-turned out - if Spartan and snug - interior.

Pricing is set at €385,000 ($490,700), or about half the price that had been previously discussed. Eight of the non-R-Edition cars have been built so far, but the Spanish company hopes the addition of the R-model to the line will help them reach full capacity.


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