Comparison Audi S7 Sportback (C7 facelift 2014) 4.0 TFSI V8 (450 Hp) quattro S tronic & Mercedes-Benz CLS coupe (C257, facelift 2021) AMG CLS 53 (435 Hp) 9G AMG SPEEDSHIFT TCT 4MATIC+
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| Brand: | Audi | Mercedes-Benz |
| Model: | S7 | CLS |
| Generation: | S7 Sportback (C7 facelift 2014) | CLS coupe (C257, facelift 2021) |
| Engine / modification: | 4.0 TFSI V8 (450 Hp) quattro S tronic | AMG CLS 53 (435 Hp) 9G AMG SPEEDSHIFT TCT 4MATIC+ |
| Production start: | 2014 year | 2021 year |
| Production end: | 2018 year | |
| Coupe type: | Hatchback | Coupe |
| Num. of Doors: | 5 | 4 |
| Num. of seats: | 4 | 5 |
| Fuel consumption / economy - urban: | 13.2 l/100 km | |
| Fuel consumption / economy - extra urban: | 7.0 l/100 km | |
| Fuel consumption / economy - combined: | 9.3 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.3 | 0.312 |
| Fuel tank volume: | 75 l | 66 l |
| Combined fuel consumption (WLTP): | 9.2-9.6 l/100 km | |
| Emission standard: | Euro 6 | Euro 6D-ISC-FCM |
| CO2 emissions: | 215 g/km | |
| Power: | 450 hp | 435 hp |
| Max power in: | 5800-6400 rpm. | 5500-6100 rpm. |
| Maximum speed: | 250 km/h | 250 , Electronically limited km/h |
| Acceleration from 0 to 100 km/h: | 4.6 sec | 4.5 sec |
| CO2 emissions (WLTP): | 209-219 g/km | |
| Torque: | 550 Nm @ 1400-5700 rpm. | 520 Nm @ 1800-5800 rpm. |
| Model Engine: | M 256.930 | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 3993 cm3 | 2999 cm3 |
| Engine oil capacity: | 8.3 l | 8.5 l |
| Coolant: | 12 l | 14 l |
| Fuel System: | Direct injection | Direct injection |
| Maximum engine speed: | 6400 rpm. | |
| Aspiration / Turbine: | BiTurbo | |
| Position of cylinders: | V engine | Inline |
| Valvetrain: | DOHC | DOHC |
| Number of cylinders: | 8 | 6 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 10.1 | 10.5 |
| Piston Stroke: | 89 mm | 92.4 mm |
| Cylinder Bore: | 84.5 mm | 83 mm |
| Electric motor power: | 22 | |
| Electric motor Torque: | 250 Nm | |
| Wheel Drive: | All wheel drive (4x4) | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 7 S-tronic | 9G AMG SPEEDSHIFT TCT |
| Length: | 4980 mm | 5012 mm |
| Width: | 1911 mm | 1896 mm |
| Width including mirrors: | 2139 mm | 2069 mm |
| Height: | 1408 mm | 1422 mm |
| Wheelbase: | 2916 mm | 2939 mm |
| Front track: | 1641 mm | 1637 mm |
| Rear (Back) track: | 1632 mm | 1647 mm |
| Front overhang: | 941 mm | |
| Rear overhang: | 1123 mm | |
| Minimum volume of Luggage (trunk): | 535 l | 490 l |
| Maximum amount of Luggage (trunk): | 1390 l | |
| Front suspension: | Independent multi-link | |
| Rear suspension: | Independent on trapezoidal lever | |
| Max weight: | 2565 kg | 2550 kg |
| Front brakes: | Ventilated discs | |
| Rear brakes: | Ventilated discs | |
| Kerb Weight: | 1955 kg | 1910 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | Electric Steering |
| Max. roof load: | 100 kg | 100 kg |
| Permitted trailer load with brakes (8%): | 2100 kg | |
| Minimum turning circle (turning diameter): | 11.9 m | 12.5 m |
| Permitted trailer load with brakes (12%): | 2100 kg | 1500 kg |
| Permitted trailer load without brakes: | 750 kg | 750 kg |
| Permitted towbar download: | 85 kg | 80 kg |
| Tire size: | 255/40 R19 | Front wheel tires: 245/40 R19; 245/35 R20 |
| Wheel rims size: | 8.5J x 19 | Front wheel rims: 8J x 19; 8J x 20 |