Comparison Cadillac XLR 4.4 i V8 32V XLR-V (449 Hp) & Porsche Panamera (G1 II) 4S Executive 3.0 V6 (420 Hp) PDK 4x4
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| Brand: | Cadillac | Porsche |
| Model: | XLR | Panamera |
| Generation: | XLR | Panamera (G1 II) |
| Engine / modification: | 4.4 i V8 32V XLR-V (449 Hp) | 4S Executive 3.0 V6 (420 Hp) PDK 4x4 |
| Production start: | 2006 year | 2013 year |
| Production end: | 2016 year | |
| Coupe type: | Coupe | Combi |
| Num. of Doors: | 2 | 5 |
| Num. of seats: | 2 | 4 |
| Fuel consumption / economy - urban: | 21.1 l/100 km | 12.4 l/100 km |
| Fuel consumption / economy - extra urban: | 11.3 l/100 km | 7.3 l/100 km |
| Fuel consumption / economy - combined: | 9.0 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 68 l | 100 l |
| Emission standard: | EURO V | |
| CO2 emissions: | 210 g/km | |
| Power: | 449 hp | 420 hp |
| Max power in: | 6400 rpm. | 6000 rpm. |
| Maximum speed: | 250 km/h | 286 km/h |
| Acceleration from 0 to 100 km/h: | 4.9 sec | 5.0 sec |
| Torque: | 561 Nm/3600 rpm. | 520 Nm/1750-5000 rpm. |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 4371 cm3 | 2997 cm3 |
| Fuel System: | Multi-point injection | Direct injection |
| Aspiration / Turbine: | Mechanical supercharging (Compressor) | BiTurbo |
| Position of cylinders: | V engine | V engine |
| Valvetrain: | DOHC | |
| Number of cylinders: | 8 | 6 |
| Number of valves per cylinder: | 4 | 4 |
| Compression ratio: | 9 | 9.8 |
| Piston Stroke: | 84 mm | 69 mm |
| Cylinder Bore: | 91 mm | 96 mm |
| Wheel Drive: | Rear wheel drive | All wheel drive (4x4) |
| Number of Gears (automatic transmission): | 6 | 7 PDK |
| Length: | 4513 mm | 5165 mm |
| Width: | 1836 mm | 1931 mm |
| Height: | 1279 mm | 1425 mm |
| Wheelbase: | 2685 mm | 3070 mm |
| Front track: | 1565 mm | 1656 mm |
| Rear (Back) track: | 1578 mm | 1646 mm |
| Minimum volume of Luggage (trunk): | 125 l | 445 l |
| Maximum amount of Luggage (trunk): | 328 l | 1263 l |
| Front suspension: | The spring | Double wishbone |
| Rear suspension: | The spring | Multi-link independent |
| Max weight: | 2485 kg | |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Disc | Ventilated discs |
| Kerb Weight: | 1730 kg | 2000 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Tire size: | 235/45; 255/40R18 | 255/45 ZR19; 285/40 ZR19 |
| Wheel rims size: | 9 J x 19; 10 J x 19 |