2003 Vauxhall Signum vs. 2011 Lexus IS
To start off, 2011 Lexus IS is newer by 8 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 3,500 cc (6 cylinders), 2011 Lexus IS is equipped with a bigger engine. In terms of performance, 2011 Lexus IS (306 HP @ 6400 RPM) has 133 more horse power than 2003 Vauxhall Signum. (173 HP @ 5500 RPM) In normal driving conditions, 2011 Lexus IS should accelerate faster than 2003 Vauxhall Signum. With that said, vehicle weight also plays an important factor in acceleration. 2011 Lexus IS weights approximately 185 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 2011 Lexus IS is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2011 Lexus IS. However, in wet, icy, snow, or gravel driving conditions, 2003 Vauxhall Signum, being front wheel drive (FWD), will offer much better control with better grip. 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, 2011 Lexus IS (375 Nm @ 4800 RPM) has 110 more torque (in Nm) than 2003 Vauxhall Signum. (265 Nm @ 2500 RPM). This means 2011 Lexus IS will have an easier job in driving up hills or pulling heavy equipment than 2003 Vauxhall Signum.
Compare all specifications:
| 2003 Vauxhall Signum | 2011 Lexus IS | |
| Make | Vauxhall | Lexus |
| Model | Signum | IS |
| Year Released | 2003 | 2011 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 3500 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 173 HP | 306 HP |
| Engine RPM | 5500 RPM | 6400 RPM |
| Torque | 265 Nm | 375 Nm |
| Torque RPM | 2500 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1415 kg | 1600 kg |
| Vehicle Length | 4640 mm | 4580 mm |
| Vehicle Width | 1800 mm | 1801 mm |
| Vehicle Height | 1470 mm | 1425 mm |
| Wheelbase Size | 2840 mm | 2728 mm |
