2007 Audi A4 vs. 2003 Vauxhall Signum
To start off, 2007 Audi A4 is newer by 4 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 2,967 cc, 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (201 HP @ 4500 RPM) has 28 more horse power than 2003 Vauxhall Signum. (173 HP @ 5500 RPM). In normal driving conditions, 2007 Audi A4 should accelerate faster than 2003 Vauxhall Signum. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 290 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 2007 Audi A4 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, 2007 Audi A4 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 Audi A4 (450 Nm @ 1400 RPM) has 185 more torque (in Nm) than 2003 Vauxhall Signum. (265 Nm @ 2500 RPM). This means 2007 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Vauxhall Signum.
Compare all specifications:
| 2007 Audi A4 | 2003 Vauxhall Signum | |
| Make | Audi | Vauxhall |
| Model | A4 | Signum |
| Year Released | 2007 | 2003 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 1997 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 201 HP | 173 HP |
| Engine RPM | 4500 RPM | 5500 RPM |
| Torque | 450 Nm | 265 Nm |
| Torque RPM | 1400 RPM | 2500 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1705 kg | 1415 kg |
| Vehicle Length | 4590 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2650 mm | 2840 mm |
