Comparison Audi A8 (D2, 4D, facelift 1998) 3.7 V8 40V (260 Hp) tiptronic & Audi Q7 (Typ 4M) 45 TDI V6 (231 Hp) quattro MHEV Tiptronic
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| Brand: | Audi | Audi |
| Model: | A8 | Q7 |
| Generation: | A8 (D2, 4D, facelift 1998) | Q7 (Typ 4M) |
| Engine / modification: | 3.7 V8 40V (260 Hp) tiptronic | 45 TDI V6 (231 Hp) quattro MHEV Tiptronic |
| Production start: | 2002 year | 2018 year |
| Production end: | 2002 year | 2019 year |
| Coupe type: | Sedan | SUV |
| Powertrain Architecture: | Internal Combustion engine | |
| Num. of Doors: | 4 | 5 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 7.1-7.2 l/100 km | |
| Fuel consumption / economy - extra urban: | 6.2-6.4 l/100 km | |
| Fuel consumption / economy - combined: | 6.5-6.7 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Diesel |
| Drag coefficient: | 0.30 | 0.32 |
| Fuel tank volume: | 90 l | 75 l |
| AdBlue tank: | 24 l | |
| Emission standard: | Euro 4 | Euro 6d-Temp |
| CO2 emissions: | 172-175 g/km | |
| Power: | 260 hp | 231 hp |
| Max power in: | 6000 rpm. | 3250-4750 rpm. |
| Maximum speed: | 250 , Electronically limited km/h | 229 km/h |
| Acceleration from 0 to 100 km/h: | 8.1 sec | 7.1 sec |
| Torque: | 350 Nm @ 3250 rpm. | 500 Nm @ 1750-3250 rpm. |
| Model Engine: | AKC | DHXC |
| Engine position: | Front, longitudinal | |
| Engine displacement: | 3697 cm3 | 2967 cm3 |
| Engine oil capacity: | 7.5 l | 6.1 l |
| Coolant: | 11 l | 12.3 l |
| Fuel System: | Diesel Commonrail | |
| Aspiration / Turbine: | Naturally aspirated engine | Turbocharger / Intercooler |
| Position of cylinders: | V engine | |
| Valvetrain: | DOHC | |
| Number of cylinders: | 8 | 6 |
| Number of valves per cylinder: | 5 | 4 |
| Compression ratio: | 11 | 16 |
| Piston Stroke: | 82.4 mm | 91.4 mm |
| Cylinder Bore: | 84.5 mm | 83 mm |
| Wheel Drive: | Front wheel drive | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 8 Tiptronic | |
| Length: | 5034 mm | 5052 mm |
| Width: | 1880 mm | 1968 mm |
| Width including mirrors: | 1973 mm | 2212 mm |
| Height: | 1438 mm | 1740 mm |
| Wheelbase: | 2882 mm | 2994 mm |
| Front track: | 1593 mm | 1679 mm |
| Rear (Back) track: | 1584 mm | 1691 mm |
| Approach angle: | 14.4 ° | |
| Departure angle: | 23.1 ° | |
| Front overhang: | 978 mm | |
| Rear overhang: | 1080 mm | |
| Minimum volume of Luggage (trunk): | 525 l | 890 l |
| Maximum amount of Luggage (trunk): | 2075 l | |
| Front suspension: | Multi-link suspension | |
| Rear suspension: | Multi-link independent | |
| Max weight: | 2245 kg | 2815 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1645 kg | 2070 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Hydraulic Steering | Electric Steering |
| Max. roof load: | 100 kg | 100 kg |
| Permitted trailer load with brakes (8%): | 2200 kg | 2700 kg |
| Minimum turning circle (turning diameter): | 12.3 m | 12.4 m |
| Permitted trailer load with brakes (12%): | 2000 kg | 2700 kg |
| Permitted trailer load without brakes: | 750 kg | 750 kg |
| Permitted towbar download: | 95 kg | 115 kg |
| Tire size: | 225/60 R16 | 235/65 R18 106W; 255/55 R19 111Y; 285/45 R20 112Y; 285/40 R21 109Y; 285/35 R22 106Y |
| Wheel rims size: | 7.5J x 16 | 8J x 18; 8.5J x 19; 9J x 20; 9.5J x 21; 10J x 22 |