Comparison BMW 7 Series (E23) 745i (252 Hp) Automatic & Mercedes-Benz E-class Cabrio (A207) E 500 BlueEFFICIENCY V8 (408 Hp) 7G-TRONIC PLUS
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| Brand: | BMW | Mercedes-Benz |
| Model: | 7 Series | E-class |
| Generation: | 7 Series (E23) | E-class Cabrio (A207) |
| Engine / modification: | 745i (252 Hp) Automatic | E 500 BlueEFFICIENCY V8 (408 Hp) 7G-TRONIC PLUS |
| Production start: | 1979 year | 2011 year |
| Production end: | 1983 year | 2013 year |
| Coupe type: | Sedan | Cabriolet |
| Num. of Doors: | 4 | 2 |
| Num. of seats: | 5 | 4 |
| Fuel consumption / economy - urban: | 16.6 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 100 l | 66 l |
| Emission standard: | Euro 5 | |
| Power: | 252 hp | 408 hp |
| Max power in: | 5200 rpm. | 5000-5750 rpm. |
| Maximum speed: | 221 km/h | 250 , Electronically limited km/h |
| Acceleration from 0 to 100 km/h: | 7.8 sec | 5.2 sec |
| Torque: | 380 Nm @ 2600 rpm. | 600 Nm @ 1600-4750 rpm. |
| Model Engine: | M102B32 | M 278.922 |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 3210 cm3 | 4663 cm3 |
| Engine oil capacity: | 8.5 l | |
| Fuel System: | Multi-point injection | Direct injection |
| Aspiration / Turbine: | Turbocharger | |
| Position of cylinders: | Inline | |
| Valvetrain: | SOHC | DOHC |
| Number of cylinders: | 6 | 8 |
| Number of valves per cylinder: | 2 | 4 |
| Compression ratio: | 7 | 10.5 |
| Piston Stroke: | 86 mm | 86 mm |
| Cylinder Bore: | 89 mm | 92.9 mm |
| Wheel Drive: | Rear wheel drive | |
| Number of Gears (automatic transmission): | 3 | 7 G-TRONIC PLUS |
| Length: | 4860 mm | 4698 mm |
| Width: | 1800 mm | 1786 mm |
| Width including mirrors: | 2015 mm | |
| Height: | 1430 mm | 1398 mm |
| Wheelbase: | 2795 mm | 2760 mm |
| Front track: | 1502 mm | 1538 mm |
| Rear (Back) track: | 1524 mm | 1544 mm |
| Ride height(clearance): | 132 mm | |
| Front overhang: | 855 mm | |
| Rear overhang: | 1083 mm | |
| Minimum volume of Luggage (trunk): | 300 l | |
| Maximum amount of Luggage (trunk): | 390 l | |
| Front suspension: | Independent, Spring McPherson, with stabilizer | Independent multi-link |
| Rear suspension: | Independent, spring multi-link with stabilizer | Independent multi-link |
| Max weight: | 2070 kg | 2335 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Ventilated discs |
| Kerb Weight: | 1600 kg | 1845 kg |
| ABS: | yes | |
| Power steering: | Electric Steering | |
| Minimum turning circle (turning diameter): | 11.2 m | |
| Permitted trailer load with brakes (12%): | 1800 kg | |
| Permitted trailer load without brakes: | 750 kg | |
| Tire size: | 205/70 R14 | Front wheel tires: 235/40 R18; 235/35 R19 |
| Wheel rims size: | 6.5 J x 14 | Front wheel rims: 8J x 18; 8J x 19 |