2009 Audi S8 vs. 2003 Opel Signum
To start off, 2009 Audi S8 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 5,204 cc (10 cylinders), 2009 Audi S8 is equipped with a bigger engine. In terms of performance, 2009 Audi S8 (450 HP @ 7000 RPM) has 325 more horse power than 2003 Opel Signum. (125 HP @ 6000 RPM). In normal driving conditions, 2009 Audi S8 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 210 kg more than 2009 Audi S8.
Because 2009 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2003 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2009 Audi S8 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, 2009 Audi S8 (540 Nm @ 3500 RPM) has 373 more torque (in Nm) than 2003 Opel Signum. (167 Nm @ 3800 RPM). This means 2009 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2009 Audi S8 | 2003 Opel Signum | |
| Make | Audi | Opel |
| Model | S8 | Signum |
| Year Released | 2009 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 1796 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 125 HP |
| Engine RPM | 7000 RPM | 6000 RPM |
| Torque | 540 Nm | 167 Nm |
| Torque RPM | 3500 RPM | 3800 RPM |
| Engine Compression Ratio | 12.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | AWD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1175 kg | 1385 kg |
| Vehicle Length | 5070 mm | 4640 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2950 mm | 2500 mm |
| Fuel Consumption Highway | 12.4 L/100km | 6.1 L/100km |
| Fuel Consumption City | 18.2 L/100km | 11.1 L/100km |
| Fuel Consumption Overall | 15.8 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 90 L | 58 L |
