2008 Audi A4 vs. 2005 Opel Signum
To start off, 2008 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Opel Signum. In addition, the cost of maintenance, including insurance, on 2005 Opel Signum would be higher. At 2,171 cc (4 cylinders), 2005 Opel Signum is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A4 weights approximately 20 kg more than 2005 Opel Signum.
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, both vehicles can yield 280 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2008 Audi A4 | 2005 Opel Signum | |
| Make | Audi | Opel |
| Model | A4 | Signum |
| Year Released | 2008 | 2005 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 0 HP | 124 HP |
| Torque | 280 Nm | 280 Nm |
| Torque RPM | 1800 RPM | 1500 RPM |
| Engine Bore Size | 82.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 98 mm |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 238 km/hour | 201 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 11.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1630 kg | 1610 kg |
| Vehicle Length | 4580 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2710 mm |
| Fuel Consumption Overall | 8.3 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
