Funny then how the engine sounds from all three manufacturers sounded exactly the same when watching the Lauritzring race...
maybe BMW supplies the engine to the other teams
Audi
Chassis:
CFRP monocoque with integrated fuel tank, CFRP crash elements on the sides, CFRP crash elements, front and rear
Engine:
V8 normally aspirated engine, 90-degree cylinder angle, 4 valves per cylinder, air intake restricted to 2 x 28.0 mm by regulations Engine control unit:
Bosch MS 5.1 Engine lubrication:
Dry sump Displacement:
4,000 cc Power output:
Approx. 340 kW (460 hp) Torque:
Over 500 Nm
Drive system:
Rear-wheel drive Clutch:
4-plate CFRP clutch
Transmission:
Sequential 6-speed sport transmission
Differential:
Adjustable multi-plate limited slip differential
Drive shafts:
Constant-velocity (CV) shafts
Steering:
Power-assisted rack and pinion steering
Suspension:
Independent front and rear, twin A-arm suspension, push rod system with spring/damper unit, adjustable gas pressure dampers
Brakes:
Hydraulic dual-circuit braking system, monoblock light metal brake calipers, ventilated carbon fiber brake discs, front and rear, brake force distribution between front and rear continually adjustable by the driver, electromagnetic starting valve
Rims :
Forged aluminum rims, front: 12 x 18 inches; rear: 13 x 18 inches
Tires:
Hankook, front: 300-680-18; rear: 320-710-18
Length:
5,010 mm (incl. rear wing)
Width:
1,950 mm
Height:
1,150 mm Minimum
weight:
1,100 kg (including driver)
Fuel tank capacity:
120 liters
BMW
Chassis:
Carbon-fibre monocoque with integrated tank and steel roll cage; carbon-fibre crash elements on sides; carbon-fibre crash elements at front and rear
Length/width/height:
4,775 mm/1,950 mm/approx. 1,200 mm
Tank capacity:
120 litres
Basic weight (incl. driver):
1,200 kg
Engine:
90° V8 aspirated engine, four valves per cylinder, 2 x 28.0mm air restrictors (in accordance with regulations)
Capacity:
4,000 ccm
Output:
approx. 480 bhp (with air restrictors, in accordance with regulations)
Max. torque:
approx. 500 Nm
Engine management system:
Bosch MS 5.1 engine control unit, without fuses, central display
Transmission:
Sequential 6-speed sports gearbox, operated via pneumatic shift paddles mounted on the steering wheel; 4-plate ZF Sachs carbon-fibre clutch; adjustable multi-disc limited-slip differential
Front axle/rear axle:
Double wishbone axle with pushrods and adjustable shock absorbers with six settings; H&R coil springs
Brakes:
Hydraulic dual-circle braking system; monoblock, light-alloy brake callipers; inner-ventilated brake discs at front and rear; brake-force distribution can be adjusted continuously by driver; electromagnetic starting valve
Wheels:
Forged aluminium rims; 18" x 12" front, 18" x 13" rear
Tyres:
Hankook; front: 300-680-18, rear: 320-710-18
Mercedes
Chassis:
Carbon fibre monocoque with steel roll cage, front, lateral and rear crash structures, bonnet, doors, side panels and wings in carbon fibre
Length:
5010 mm
Width:
1950 mm
Height:
1210 mm
Wheelbase:
2750 mm
Fuel tank:
120 litres
Weight:
1100 kg (with driver)
Aerodynamics:
Aerodynamic modifications to front splitter and side panels, flat bottom, front and rear diffusers, rear wing
Engine:
Capacity: 4.0 litres, Cylinder head: 4 valves per cylinder, Cylinder arrangement: V8, 90°,Performance: approx 500bhp at 7500 rpm, Maximum torque: 500 Nm, Air intake restrictors: 2 x 28 mm diameter
Transmission:
Standard 6-speed transverse-mounted gearbox, rear-wheel drive, pneumatically operated sequential gear shift on steering wheel, mechanical differential lock without traction control, carbon fibre driveshaft, 3-plate carbon fibre clutch operated by foot pedal
Suspension:
Double wishbones with spring/damper units to front and rear axles, actuated via pushrods
Brakes:
Standard carbon braking system without ABS
Steering:
Rack and pinion steering with power assistance
Wheels / tyres:
Aluminium wheels, control tyres, Front: Wheels: 12x18 Tyres: 300 / 680 R18, Rear: Wheels: 13x18 Tyres: 310 / 710 R18
All cars have different dimensions, weights, power, etc... if all cars were the same they would have the same specs.
