2006 Audi A8 vs. 2004 Opel Signum
To start off, 2006 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 3,123 cc (6 cylinders), 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (256 HP) has 131 more horse power than 2004 Opel Signum. (125 HP). In normal driving conditions, 2006 Audi A8 should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 500 kg more than 2004 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2006 Audi A8 (330 Nm @ 3250 RPM) has 160 more torque (in Nm) than 2004 Opel Signum. (170 Nm @ 3800 RPM). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum.
Compare all specifications:
| 2006 Audi A8 | 2004 Opel Signum | |
| Make | Audi | Opel |
| Model | A8 | Signum |
| Year Released | 2006 | 2004 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 256 HP | 125 HP |
| Torque | 330 Nm | 170 Nm |
| Torque RPM | 3250 RPM | 3800 RPM |
| Engine Compression Ratio | 13.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 245 km/hour | 197 km/hour |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1880 kg | 1380 kg |
| Vehicle Length | 5060 mm | 4640 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2950 mm | 2700 mm |
| Fuel Consumption Overall | 9.8 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 90 L | 58 L |
