2008 Audi A6 vs. 2003 Opel Signum
To start off, 2008 Audi A6 is newer by 5 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 2,393 cc (6 cylinders), 2008 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Audi A6 (250 HP @ 6000 RPM) has 106 more horse power than 2003 Opel Signum. (144 HP @ 6000 RPM). In normal driving conditions, 2008 Audi A6 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 206 kg more than 2008 Audi A6.
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, 2003 Opel Signum (240 Nm @ 3800 RPM) has 10 more torque (in Nm) than 2008 Audi A6. (230 Nm @ 3200 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A6.
Compare all specifications:
| 2008 Audi A6 | 2003 Opel Signum | |
| Make | Audi | Opel |
| Model | A6 | Signum |
| Year Released | 2008 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 2198 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 250 HP | 144 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 230 Nm | 240 Nm |
| Torque RPM | 3200 RPM | 3800 RPM |
| Engine Bore Size | 81 mm | 86 mm |
| Engine Stroke Size | 77.4 mm | 94.6 mm |
| Engine Compression Ratio | 10.5:1 | 12.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1480 kg | 1686 kg |
| Vehicle Length | 4180 mm | 4640 mm |
| Vehicle Width | 1820 mm | 1800 mm |
| Vehicle Height | 1370 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2640 mm |
| Fuel Consumption Overall | 9.1 L/100km | 5.2 L/100km |
| Fuel Tank Capacity | 70 L | 58 L |
