2007 Alpina B7 vs. 2003 Infiniti FX
To start off, 2007 Alpina B7 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Infiniti FX. In addition, the cost of maintenance, including insurance, on 2003 Infiniti FX would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti FX is equipped with a bigger engine. In terms of performance, 2007 Alpina B7 (493 HP @ 5500 RPM) has 182 more horse power than 2003 Infiniti FX. (311 HP @ 6400 RPM). In normal driving conditions, 2007 Alpina B7 should accelerate faster than 2003 Infiniti FX. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alpina B7 weights approximately 10 kg more than 2003 Infiniti FX. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Infiniti FX is four wheel drive (4WD), it will have significant more traction and grip than 2007 Alpina B7. In wet, icy, snow, or gravel driving conditions, 2003 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, 2007 Alpina B7 (700 Nm @ 4250 RPM) has 254 more torque (in Nm) than 2003 Infiniti FX. (446 Nm @ 4000 RPM). This means 2007 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2003 Infiniti FX.
Compare all specifications:
| 2007 Alpina B7 | 2003 Infiniti FX | |
| Make | Alpina | Infiniti |
| Model | B7 | FX |
| Year Released | 2007 | 2003 |
| Body Type | Sedan | Crossover |
| Engine Position | Front | Front |
| Engine Size | 4396 cc | 4494 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 493 HP | 311 HP |
| Engine RPM | 5500 RPM | 6400 RPM |
| Torque | 700 Nm | 446 Nm |
| Torque RPM | 4250 RPM | 4000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1960 kg | 1950 kg |
| Vehicle Length | 5040 mm | 4810 mm |
| Vehicle Width | 1910 mm | 1930 mm |
| Vehicle Height | 1480 mm | 1660 mm |
| Wheelbase Size | 3000 mm | 2860 mm |
