Comparison BMW 6 Series Coupe (F13) 640i (320 Hp) Steptronic & Kia K3 Sedan II (facelift 2021) G1.6 (123 Hp) IVT
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| Brand: | BMW | Kia |
| Model: | 6 Series | K3 |
| Generation: | 6 Series Coupe (F13) | K3 Sedan II (facelift 2021) |
| Engine / modification: | 640i (320 Hp) Steptronic | G1.6 (123 Hp) IVT |
| Production start: | 2011 year | 2021 year |
| Production end: | 2015 year | |
| Coupe type: | Coupe | Sedan |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 4 | 5 |
| Fuel consumption / economy - urban: | 10.3-10.5 l/100 km | 7.3-7.9 l/100 km |
| Fuel consumption / economy - extra urban: | 6.0-6.2 l/100 km | 5.6-6.1 l/100 km |
| Fuel consumption / economy - combined: | 7.6-7.8 l/100 km | 6.6-7.1 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.30 | |
| Fuel tank volume: | 70 l | |
| Emission standard: | Euro 5 | |
| CO2 emissions: | 177-181 g/km | 108-117 g/km |
| Power: | 320 hp | 123 hp |
| Max power in: | 5800-6000 rpm. | 6300 rpm. |
| Maximum speed: | 250 km/h | |
| Acceleration from 0 to 100 km/h: | 5.4 sec | |
| Torque: | 450 Nm @ 1300-4500 rpm. | 154 Nm @ 4500 rpm. |
| Model Engine: | N55B30 | |
| Engine position: | Front, longitudinal | |
| Engine displacement: | 2979 cm3 | 1598 cm3 |
| Engine oil capacity: | 6.5 l | |
| Coolant: | 10.2 l | |
| Fuel System: | Direct injection | |
| Aspiration / Turbine: | Twin-power turbo | |
| Position of cylinders: | Inline | Inline |
| Number of cylinders: | 6 | 4 |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 10.2 | |
| Piston Stroke: | 89.6 mm | |
| Cylinder Bore: | 84 mm | |
| Wheel Drive: | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | 8 Steptronic | IVT |
| Length: | 4894 mm | 4645 mm |
| Width: | 1894 mm | 1800 mm |
| Height: | 1396 mm | 1440 mm |
| Wheelbase: | 2855 mm | 2700 mm |
| Front track: | 1600 mm | 1549-1563 mm |
| Rear (Back) track: | 1657 mm | 1558-1572 mm |
| Ride height(clearance): | 124 mm | |
| Minimum volume of Luggage (trunk): | 460 l | |
| Front suspension: | Double wishbone | Independent type McPherson |
| Rear suspension: | Multi-link independent | Torsion |
| Max weight: | 2180 kg | |
| Front brakes: | Ventilated discs | Disc |
| Rear brakes: | Ventilated discs | Disc |
| Kerb Weight: | 1660 kg | 1240-1260 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | |
| Max. roof load: | 75 kg | |
| Minimum turning circle (turning diameter): | 11.7 m | |
| Tire size: | 225/55 R17; 245/45 R18; 275/45 R18; 245/40 R19; 275/35 R19; 245/35 R20; 275/30 R20 | 195/65 R15 91T; 225/45 R17 91W |
| Wheel rims size: | 8J x 17; 8J x 18; 9J x 18; 8.5J x 19; 9J x 19; 8.5J x 20; 9J x 20 | R15; R17 |