Comparison BMW Z4 (E85, facelift 2006) 3.0 si (265 Hp) & Cadillac CTS III V 6.2 V8 (649 Hp) Automatic
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| Brand: | BMW | Cadillac |
| Model: | Z4 | CTS |
| Generation: | Z4 (E85, facelift 2006) | CTS III |
| Engine / modification: | 3.0 si (265 Hp) | V 6.2 V8 (649 Hp) Automatic |
| Production start: | 2006 year | 2016 year |
| Production end: | 2008 year | 2019 year |
| Coupe type: | Cabriolet | Sedan |
| Num. of Doors: | 2 | 4 |
| Num. of seats: | 2 | 5 |
| Fuel consumption / economy - urban: | 13.0 l/100 km | |
| Fuel consumption / economy - extra urban: | 6.5 l/100 km | |
| Fuel consumption / economy - combined: | 8.9 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Drag coefficient: | 0.34 | |
| Fuel tank volume: | 55 l | 72 l |
| Power: | 265 hp | 649 hp |
| Max power in: | 6600 rpm. | 6400 rpm. |
| Maximum speed: | 250 km/h | 322 km/h |
| Acceleration from 0 to 100 km/h: | 5.7 sec | 3.7 sec |
| Torque: | 315 Nm @ 2500 rpm. | 855 Nm @ 3600 rpm. |
| Model Engine: | N52B30 | LT4 |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2996 cm3 | 6162 cm3 |
| Engine oil capacity: | 6.5 l | 9.5 l |
| Coolant: | 12.2 l | |
| Fuel System: | Multi-point injection | Direct injection |
| Maximum engine speed: | 6600 rpm. | |
| Aspiration / Turbine: | Mechanical supercharging (Compressor) | |
| Position of cylinders: | Inline | V engine |
| Valvetrain: | DOHC | |
| Number of cylinders: | 6 | 8 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 10.7 | 10 |
| Piston Stroke: | 88 mm | 92 mm |
| Cylinder Bore: | 85 mm | 103.25 mm |
| Wheel Drive: | Rear wheel drive | Rear wheel drive |
| Number of Gears (automatic transmission): | 8 | |
| Number of Gears (manual transmission): | 6 | |
| Length: | 4091 mm | 5021 mm |
| Width: | 1781 mm | 1833 mm |
| Height: | 1268 mm | 1454 mm |
| Wheelbase: | 2495 mm | 2910 mm |
| Front track: | 1473 mm | 1577 mm |
| Rear (Back) track: | 1523 mm | 1554 mm |
| Minimum volume of Luggage (trunk): | 300 l | 447 l |
| Front suspension: | The depreciated rack | Independent, Spring McPherson, with stabilizer |
| Rear suspension: | Helical spring | Multi-link independent |
| Max weight: | 1650 kg | |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Ventilated discs |
| Kerb Weight: | 1395 kg | 1880 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering |
| Minimum turning circle (turning diameter): | 9.8 m | 12.3 m |
| Tire size: | 225/45 R17 | 265/35 ZR19; 295/30 ZR19 |
| Wheel rims size: | 8J x 17 | 9.5 J x 19; 10 J x 19 |