Comparison Audi A8 Long (D3, 4E) 6.0 W12 (450 Hp) quattro Tiptronic & Audi A3 Sedan (8V) 2.0 TDI (184 Hp) clean diesel quattro S-tronic & BMW 7 Series (E38) 750i (326 Hp) Steptronic
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| Brand: | Audi | Audi | BMW |
| Model: | A8 | A3 | 7 Series |
| Generation: | A8 Long (D3, 4E) | A3 Sedan (8V) | 7 Series (E38) |
| Engine / modification: | 6.0 W12 (450 Hp) quattro Tiptronic | 2.0 TDI (184 Hp) clean diesel quattro S-tronic | 750i (326 Hp) Steptronic |
| Production start: | 2003 year | 2014 year | 1994 year |
| Production end: | 2005 year | 2016 year | 1998 year |
| Coupe type: | Sedan | Sedan | Sedan |
| Num. of Doors: | 4 | 4 | 4 |
| Num. of seats: | 5 | 5 | 5 |
| Fuel consumption / economy - urban: | 20.5 l/100 km | 5.5-5.7 l/100 km | 16.8 l/100 km |
| Fuel consumption / economy - extra urban: | 9.9 l/100 km | 4.4-4.6 l/100 km | 8.6 l/100 km |
| Fuel consumption / economy - combined: | 13.8 l/100 km | 4.8-5.0 l/100 km | 11.9 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Diesel | Petrol (Gasoline) |
| Drag coefficient: | 0.27 | 0.29 | 0.31 |
| Fuel tank volume: | 90 l | 55 l | 95 l |
| Emission standard: | Euro 4 | EURO VI | |
| CO2 emissions: | 127-230 g/km | ||
| Power: | 450 hp | 184 hp | 326 hp |
| Max power in: | 6500 rpm. | 3500-4000 rpm. | 5000 rpm. |
| Maximum speed: | 250 km/h | 237 km/h | 250 km/h |
| Acceleration from 0 to 100 km/h: | 5.1 sec | 6.9 sec | 6.6 sec |
| Torque: | 580 Nm @ 4000-4700 rpm. | 380 Nm/1750-3250 rpm. | 490 Nm @ 3900 rpm. |
| Model Engine: | BHT, BSB, BTE | M73B54 | |
| Engine position: | Front, longitudinal | Front, transverse | Front, longitudinal |
| Engine displacement: | 5998 cm3 | 1968 cm3 | 5379 cm3 |
| Engine oil capacity: | 12.5 l | 4.6 l | 8.0 l |
| Coolant: | 18.9 l | 13.0 l | |
| Fuel System: | Multi-point injection | Diesel Commonrail | Multi-point injection |
| Aspiration / Turbine: | Turbo / Intercooler (Turbocharging / Intercooler) | ||
| Position of cylinders: | W engine | Inline | V engine |
| Valvetrain: | DOHC | DOHC | SOHC |
| Number of cylinders: | 12 | 4 | 12 |
| Number of valves per cylinder: | 4 | 4 | 2 |
| Compression ratio: | 10.75 | 15.8 | 10 |
| Piston Stroke: | 90.2 mm | 95.5 mm | 79 mm |
| Cylinder Bore: | 84 mm | 81 mm | 85 mm |
| Wheel Drive: | All wheel drive (4x4) | All wheel drive (4x4) | Rear wheel drive |
| Number of Gears (automatic transmission): | 6 Tiptronic | 6 S-tronic | 5 Steptronic |
| Length: | 5181 mm | 4456 mm | 4984 mm |
| Width: | 1894 mm | 1796 mm | 1862 mm |
| Width including mirrors: | 1960 mm | ||
| Height: | 1455 mm | 1416 mm | 1425 mm |
| Wheelbase: | 3074 mm | 2637 mm | 2930 mm |
| Front track: | 1629 mm | 1555 mm | 1552 mm |
| Rear (Back) track: | 1615 mm | 1526 mm | 1568 mm |
| Front overhang: | 869 mm | ||
| Rear overhang: | 950 mm | ||
| Minimum volume of Luggage (trunk): | 500 l | 390 l | 500 l |
| Maximum amount of Luggage (trunk): | 845 l | ||
| Front suspension: | Multi-link suspension | Independent, Spring McPherson, with stabilizer | Wishbone |
| Rear suspension: | Independent on trapezoidal lever | Multi-link independent | Inclined Lever |
| Max weight: | 2545 kg | 1980 kg | 2495 kg |
| Front brakes: | Ventilated discs | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc | Ventilated discs |
| Kerb Weight: | 1995 kg | 1430 kg | 1960 kg |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | Electric Steering | Hydraulic Steering |
| Max. roof load: | 75 kg | ||
| Permitted trailer load with brakes (8%): | 1800 kg | ||
| Minimum turning circle (turning diameter): | 12.5 m | 11.0 m | 11.6 m |
| Permitted trailer load with brakes (12%): | 1800 kg | ||
| Permitted trailer load without brakes: | 750 kg | ||
| Permitted towbar download: | 75 kg | ||
| Tire size: | 255/40 R19 | 205/55 R16 | 235/60 R16 |
| Wheel rims size: | R19 | 7.0J x 16 | R16 |