2006 Alpina Roadster vs. 2005 Infiniti FX
To start off, 2006 Alpina Roadster is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Infiniti FX. In addition, the cost of maintenance, including insurance, on 2005 Infiniti FX would be higher. At 3,491 cc (6 cylinders), 2005 Infiniti FX is equipped with a bigger engine. In terms of performance, 2006 Alpina Roadster (296 HP) has 16 more horse power than 2005 Infiniti FX. (280 HP). In normal driving conditions, 2006 Alpina Roadster should accelerate faster than 2005 Infiniti FX. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti FX weights approximately 541 kg more than 2006 Alpina Roadster.
Because 2005 Infiniti FX is four wheel drive (4WD), it will have significant more traction and grip than 2006 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 2005 Infiniti FX will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2005 Infiniti FX (366 Nm) has 4 more torque (in Nm) than 2006 Alpina Roadster. (362 Nm). This means 2005 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 2006 Alpina Roadster.
Compare all specifications:
| 2006 Alpina Roadster | 2005 Infiniti FX | |
| Make | Alpina | Infiniti |
| Model | Roadster | FX |
| Year Released | 2006 | 2005 |
| Body Type | Convertible | Crossover |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 3491 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 296 HP | 280 HP |
| Torque | 362 Nm | 366 Nm |
| Engine Bore Size | 87 mm | 96 mm |
| Engine Stroke Size | 93.8 mm | 81 mm |
| Engine Compression Ratio | 10.0:1 | 10.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1395 kg | 1936 kg |
| Vehicle Length | 4100 mm | 4810 mm |
| Vehicle Width | 1790 mm | 1930 mm |
| Vehicle Height | 1310 mm | 1660 mm |
| Wheelbase Size | 2500 mm | 2860 mm |
| Fuel Consumption Overall | 11.7 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 55 L | 90 L |
