The Pagani Zonda and its several variants are already among the most dramatically styled and exclusive supercars in the world, but founder Horacio Pagani has more ambitious plans for the car in the form of the Zonda R. First previewed in late 2007, Pagani released full details for the car upon its Vienna debut on January 15, and earlier this month revealed the first real-life photos of the car. Now the ultimate Zonda has been captured taking laps at Monza in the rain.

The photos show the Zonda working hard despite the slippery conditions. Sideways is rightways in the rain when you're talking about the kind of RWD power found in the Zonda R.

Powered by a race-bred 6.0-liter AMG V-12, the Zonda R is an exercise in extremes--extreme design, extreme materials and extreme performance. Rated at 750 horsepower and 524 pound-feet of torque, the car has yet to take to the track in anger - at least publicly - though its heavier, less powerful Zonda F stablemate already set a scorching Nurburgring lap time of 7:27.82.

However, while the Zonda F was designed from the start as a road car, the all-new Zonda R was designed with one intention in mind – ultimate performance at the racetrack without any implications of rules, except for safety, where no compromise is allowed.

In September 2006 the first drawings were ready, but it was crucial to have the support of Mercedes-AMG for a high revving engine with a power output of 750 hp, dry sump lubrication, low weight and a low centre of gravity. New modifications to the engine include a carbon-fiber high-flow intake, a racing multiple disc sintered clutch, and an F1-style exhaust system.

The Zonda R is a car designed from scratch, with only 10% of the Zonda F components to be carried over. Specifications include forged suspension, a newly designed six speed transversal sequential gearbox, a full carbon-fiber monocoque body, and an aeronautical four pump fuel tank.

The wheelbase has grown by 47mm, the overall length by 394mm and the track is increased by 50mm. The bodywork and aerodynamics have been modified to offer maximum downforce. Other features include magnesium forged rims with a central wheel nut and a quick pneumatic lifting system.

The new bodywork has been honed to offer elevated downforce even in low speed corners. The longer front bonnet with flaps, closed underbody and the rear overhang with the adjustable rear wing and race derived diffuser all work to improve aerodynamics.

Pricing for the car starts at $1.87 million.