2008 Infiniti M vs. 2003 Vauxhall Signum
To start off, 2008 Infiniti M is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Vauxhall Signum. In addition, the cost of maintenance, including insurance, on 2003 Vauxhall Signum would be higher. At 3,498 cc (6 cylinders), 2008 Infiniti M is equipped with a bigger engine. In terms of performance, 2008 Infiniti M (275 HP @ 6200 RPM) has 100 more horse power than 2003 Vauxhall Signum. (175 HP @ 5500 RPM). In normal driving conditions, 2008 Infiniti M should accelerate faster than 2003 Vauxhall Signum. With that said, vehicle weight also plays an important factor in acceleration. 2008 Infiniti M weights approximately 387 kg more than 2003 Vauxhall Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Infiniti M is four wheel drive (4WD), it will have significant more traction and grip than 2003 Vauxhall Signum. In wet, icy, snow, or gravel driving conditions, 2008 Infiniti M 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 Vauxhall Signum (370 Nm @ 1900 RPM) has 7 more torque (in Nm) than 2008 Infiniti M. (363 Nm @ 4800 RPM). This means 2003 Vauxhall Signum will have an easier job in driving up hills or pulling heavy equipment than 2008 Infiniti M.
Compare all specifications:
| 2008 Infiniti M | 2003 Vauxhall Signum | |
| Make | Infiniti | Vauxhall |
| Model | M | Signum |
| Year Released | 2008 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3498 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 275 HP | 175 HP |
| Engine RPM | 6200 RPM | 5500 RPM |
| Torque | 363 Nm | 370 Nm |
| Torque RPM | 4800 RPM | 1900 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1837 kg | 1450 kg |
| Vehicle Length | 4900 mm | 4640 mm |
| Vehicle Width | 1800 mm | 1800 mm |
| Vehicle Height | 1520 mm | 1470 mm |
| Wheelbase Size | 2910 mm | 2840 mm |
