Its a pretty lush looking racing car, and sounds like an F1 car in the YouTube vid (link on TopGear site above)
Some more images and info I have pulled from Honda's press release.
Honda Motor Co., Ltd. today introduced the HSV-010 GT, which will compete in the GT500 class of the 2010 Super GT Series (managed and run by GTA Co., Ltd.).
Honda HSV-010 GT
Specifications and performance characteristics
Length x Width x Height (m): 4.675 x 2.000 x (not disclosed)
Wheelbase (m): 2.700
Vehicle weight (kg): 1,100 or more
Engine name: HR10EG
Configuration: Liquid-cooled, naturally aspirated, longitudinal V8
V angle (°): 90
Valve train: Gear-driven DOHC: 2 intake and 2 exhaust valves per cylinder
Displacement (cm3): 3,397
Bore x stroke (mm): 93.0 x 62.5
Compression ratio: (Not disclosed)
Maximum output: 500 or more
Maximum torque(N•m): 392 or more
Throttle control system: Mechanical
Fuel supply system: Programmed fuel injection system (Honda PGM-FI)
Fuel: Lead-free premium gasoline
Lubrication: Dry sump
Transmission mechanism: Constant mesh
Transmission shifting method: Steering paddle shifter
Steering system mechanism: Rack and pinion system with electric power steering (EPS)
Tyres: Front 330/40R18, Rear 330/45R17
Brake type and mechanism: Hydraulic ventilated disc system
Suspension system: Double wishbone
Stabilizer: Torsion bar
Note: The letters “HSV” stand for Honda Sports Velocity.
