Comparison Audi A8 (D5, facelift 2021) 60 TFSI V8 (460 Hp) MHEV quattro tiptronic & Audi TT Roadster (8J, facelift 2010) 2.0 TDI (170 Hp) quattro S tronic
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| Brand: | Audi | Audi |
| Model: | A8 | TT |
| Generation: | A8 (D5, facelift 2021) | TT Roadster (8J, facelift 2010) |
| Engine / modification: | 60 TFSI V8 (460 Hp) MHEV quattro tiptronic | 2.0 TDI (170 Hp) quattro S tronic |
| Production start: | 2021 year | 2011 year |
| Production end: | 2014 year | |
| Coupe type: | Sedan | Roadster |
| Num. of Doors: | 4 | 2 |
| Num. of seats: | 5 | 2 |
| Fuel consumption / economy - urban: | 7.1 l/100 km | |
| Fuel consumption / economy - extra urban: | 4.8 l/100 km | |
| Fuel consumption / economy - combined: | 5.6 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Diesel |
| Drag coefficient: | 0.27 | 0.32 |
| Fuel tank volume: | 82 l | 60 l |
| Combined fuel consumption (WLTP): | 10.9-11.8 l/100 km | |
| Emission standard: | Euro 6d-ISC-FCM | Euro 5 |
| CO2 emissions: | 146 g/km | |
| Power: | 460 hp | 170 hp |
| Max power in: | 5500 rpm. | 4200 rpm. |
| Maximum speed: | 250 , Electronically limited km/h | 222 km/h |
| Acceleration from 0 to 100 km/h: | 4.4 sec | 7.6 sec |
| CO2 emissions (WLTP): | 248-269 g/km | |
| Torque: | 660 Nm @ 1850-4500 rpm. | 350 Nm @ 1750-2500 rpm. |
| Model Engine: | CXYA | CFGB |
| Engine position: | Front, longitudinal | Front, transverse |
| Engine displacement: | 3996 cm3 | 1968 cm3 |
| Engine oil capacity: | 9.5 l | 4.0 l |
| Coolant: | 15.9 l | |
| Fuel System: | Direct injection | Diesel Commonrail |
| Aspiration / Turbine: | Turbo / Intercooler (Turbocharging / Intercooler) | |
| Position of cylinders: | V engine | Inline |
| Valvetrain: | DOHC | DOHC |
| Number of cylinders: | 8 | 4 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 11.1 | 16.5 |
| Piston Stroke: | 86 mm | 95.5 mm |
| Cylinder Bore: | 86 mm | 81 mm |
| Wheel Drive: | All wheel drive (4x4) | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 8 tiptronic | 6 S tronic |
| Length: | 5190 mm | 4198 mm |
| Width: | 1945 mm | 1842 mm |
| Width including mirrors: | 2130 mm | 1952 mm |
| Height: | 1473 mm | 1358 mm |
| Wheelbase: | 2998 mm | 2468 mm |
| Front track: | 1645 mm | 1572 mm |
| Rear (Back) track: | 1633 mm | 1558 mm |
| Approach angle: | 11 ° | |
| Departure angle: | 15 ° | |
| Front overhang: | 1007 mm | 911 mm |
| Rear overhang: | 1185 mm | 819 mm |
| Minimum volume of Luggage (trunk): | 505 l | 250 l |
| Maximum amount of Luggage (trunk): | 700 l | |
| Front suspension: | Independent, Spring McPherson, with stabilizer | |
| Rear suspension: | Independent, spring multi-link with stabilizer | |
| Max weight: | 2765 kg | 1760 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc |
| Kerb Weight: | 2045 kg | 1440 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | |
| Max. roof load: | 90 kg | |
| Permitted trailer load with brakes (8%): | 2300 kg | |
| Minimum turning circle (turning diameter): | 12.5 m | 10.96 m |
| Permitted trailer load with brakes (12%): | 2300 kg | |
| Permitted trailer load without brakes: | 750 kg | |
| Permitted towbar download: | 95 kg | |
| Tire size: | 255/45 R19; 265/40 R20; 265/35 R21 | 225/55 R16 |
| Wheel rims size: | 9J x 19; 9J x 20; 9J x 21 | 7.5J x 16 |