2007 GMC Sierra vs. 2003 Infiniti FX
To start off, 2007 GMC Sierra 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 4,802 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2003 Infiniti FX (311 HP @ 6400 RPM) has 16 more horse power than 2007 GMC Sierra. (295 HP @ 5600 RPM) In normal driving conditions, 2003 Infiniti FX should accelerate faster than 2007 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 318 kg more than 2003 Infiniti FX.
Because 2003 Infiniti FX is four wheel drive (4WD), it will have significant more traction and grip than 2007 GMC Sierra. 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, 2003 Infiniti FX (446 Nm @ 4000 RPM) has 32 more torque (in Nm) than 2007 GMC Sierra. (414 Nm @ 4800 RPM). This means 2003 Infiniti FX will have an easier job in driving up hills or pulling heavy equipment than 2007 GMC Sierra.
Compare all specifications:
| 2007 GMC Sierra | 2003 Infiniti FX | |
| Make | GMC | Infiniti |
| Model | Sierra | FX |
| Year Released | 2007 | 2003 |
| Body Type | Pickup | Crossover |
| Engine Position | Front | Front |
| Engine Size | 4802 cc | 4494 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 295 HP | 311 HP |
| Engine RPM | 5600 RPM | 6400 RPM |
| Torque | 414 Nm | 446 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2268 kg | 1950 kg |
| Vehicle Length | 5850 mm | 4810 mm |
| Vehicle Width | 2040 mm | 1930 mm |
| Vehicle Height | 1880 mm | 1660 mm |
| Wheelbase Size | 3650 mm | 2860 mm |
