Comparison BMW 6 Series (E24) 630 CS (185 Hp) Automatic & Tofas Sahin 1.6 (75 Hp) & Alpina B6 (E21) 2.8 (218 Hp)
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| Brand: | BMW | Tofas | Alpina |
| Model: | 6 Series | Sahin | B6 |
| Generation: | 6 Series (E24) | Sahin | B6 (E21) |
| Engine / modification: | 630 CS (185 Hp) Automatic | 1.6 (75 Hp) | 2.8 (218 Hp) |
| Production start: | 1976 year | 1990 year | 1981 year |
| Production end: | 1979 year | 1997 year | 1983 year |
| Coupe type: | Coupe | Sedan | Coupe |
| Num. of Doors: | 2 | 4 | |
| Num. of seats: | 4 | 5 | |
| Fuel consumption / economy - urban: | 7.8 l/100 km | ||
| Fuel consumption / economy - extra urban: | 5.3 l/100 km | ||
| Fuel consumption / economy - combined: | 12.4 l/100 km | 6.55 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.41 | ||
| Fuel tank volume: | 70 l | 50 l | |
| Power: | 185 hp | 75 hp | 218 hp |
| Max power in: | 5800 rpm. | 5800 rpm. | |
| Maximum speed: | 202 km/h | 170 km/h | |
| Acceleration from 0 to 100 km/h: | 11.2 sec | 13.1 sec | |
| Torque: | 255 Nm @ 3500 rpm. | 130 Nm/2900 rpm. | |
| Model Engine: | M30 | ||
| Engine position: | Front, longitudinal | Front, longitudinal | |
| Engine displacement: | 2986 cm3 | 1581 cm3 | |
| Engine oil capacity: | 5.8 l | ||
| Fuel System: | Carburettor | Carburettor | |
| Position of cylinders: | Inline | Inline | |
| Valvetrain: | OHC | ||
| Number of cylinders: | 6 | 4 | |
| Number of valves per cylinder: | 2 | 2 | |
| Compression ratio: | 9 | 9.2 | |
| Piston Stroke: | 80 mm | 67.4 mm | |
| Cylinder Bore: | 89 mm | 86.4 mm | |
| Wheel Drive: | Rear wheel drive | ||
| Number of Gears (automatic transmission): | 3 | - | |
| Number of Gears (manual transmission): | 5 | ||
| Length: | 4755 mm | 4316 mm | |
| Width: | 1725 mm | 1642 mm | |
| Height: | 1365 mm | 1437 mm | |
| Wheelbase: | 2626 mm | 2490 mm | |
| Front track: | 1422 mm | 1386 mm | |
| Rear (Back) track: | 1487 mm | 1327 mm | |
| Minimum volume of Luggage (trunk): | 415 l | 400 l | |
| Front suspension: | Independent, Spring McPherson, with stabilizer | The depreciated rack | |
| Rear suspension: | Independent, spring | Helical spring | |
| Max weight: | 1830 kg | 1450 kg | |
| Front brakes: | Ventilated discs | Disc | |
| Rear brakes: | Disc | Drum | |
| Kerb Weight: | 1470 kg | 985 kg | |
| Steering type: | Worm-reduction unit | Steering rack and pinion | |
| Minimum turning circle (turning diameter): | 11.2 m | ||
| Tire size: | 195/70 R14 | 175/70 R13 S | |
| Wheel rims size: | R14 | R13 |