Comparison Kia K9 II (facelift 2021) 3.8 GDI V6 (315 Hp) Automatic & Rolls-Royce Ghost (facelift 2015) 6.6 V12 (612 Hp) Automatic Black Badge
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| Brand: | Kia | Rolls-Royce |
| Model: | K9 | Ghost |
| Generation: | K9 II (facelift 2021) | Ghost (facelift 2015) |
| Engine / modification: | 3.8 GDI V6 (315 Hp) Automatic | 6.6 V12 (612 Hp) Automatic Black Badge |
| Production start: | 2021 year | 2016 year |
| Coupe type: | Sedan | Sedan |
| Num. of Doors: | 4 | 4 |
| Num. of seats: | 5 | 5 |
| Fuel consumption / economy - urban: | 12.8-13.3 l/100 km | 22.2 l/100 km |
| Fuel consumption / economy - extra urban: | 9.1-9.5 l/100 km | 10.1 l/100 km |
| Fuel consumption / economy - combined: | 11.1-11.6 l/100 km | 14.6 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.33 | |
| Fuel tank volume: | 77 l | 82 l |
| Emission standard: | EURO VI | |
| CO2 emissions: | 192-198 g/km | 333 g/km |
| Power: | 315 hp | 612 hp |
| Max power in: | 6000 rpm. | 5250 rpm. |
| Maximum speed: | 250 km/h | |
| Acceleration from 0 to 100 km/h: | 4.8 sec | |
| Torque: | 397 Nm @ 5000 rpm. | 840 Nm/1650-5000 rpm. |
| Model Engine: | G6DJ | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 3778 cm3 | 6592 cm3 |
| Fuel System: | Direct injection | Direct injection |
| Position of cylinders: | V engine | |
| Number of cylinders: | 6 | 12 |
| Number of valves per cylinder: | 4 | |
| Compression ratio: | 10 | |
| Piston Stroke: | 88.3 mm | |
| Cylinder Bore: | 89 mm | |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 | 8 |
| Length: | 5140 mm | 5399 mm |
| Width: | 1915 mm | 1948 mm |
| Height: | 1490 mm | 1550 mm |
| Wheelbase: | 3105 mm | 3295 mm |
| Front track: | 1629-1639 mm | 1622 mm |
| Rear (Back) track: | 1639-1659 mm | 1660 mm |
| Front suspension: | Independent multi-link | |
| Rear suspension: | Multi-link independent | |
| Max weight: | 2940 kg | |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1930-1940 kg | 2490 kg |
| ABS: | yes | |
| Steering type: | Steering rack and pinion | |
| Power steering: | Electric Steering | |
| Minimum turning circle (turning diameter): | 13.4 m | |
| Tire size: | Front wheel tires: 245/45 R19 | 255/40 R21; 285/35 R21 |
| Wheel rims size: | 8.5J x 21; 9.5J x 21 |