2004 Audi A4 vs. 2004 Opel Signum
To start off, both 2004 Audi A4 and 2004 Opel Signum were released in the same year (2004). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,908 cc (4 cylinders), 2004 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (169 HP @ 6300 RPM) has 21 more horse power than 2004 Opel Signum. (148 HP @ 4000 RPM). In normal driving conditions, 2004 Audi A4 should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 45 kg more than 2004 Audi A4.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2004 Audi A4 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, 2004 Opel Signum (326 Nm @ 2000 RPM) has 101 more torque (in Nm) than 2004 Audi A4. (225 Nm @ 1950 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 2004 Opel Signum | |
| Make | Audi | Opel |
| Model | A4 | Signum |
| Year Released | 2004 | 2004 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1908 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 169 HP | 148 HP |
| Engine RPM | 6300 RPM | 4000 RPM |
| Torque | 225 Nm | 326 Nm |
| Torque RPM | 1950 RPM | 2000 RPM |
| Engine Bore Size | 81 mm | 82 mm |
| Engine Stroke Size | 86.4 mm | 90.4 mm |
| Engine Compression Ratio | 9.0:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 222 km/hour | 209 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1565 kg | 1610 kg |
| Vehicle Length | 4580 mm | 4640 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Consumption Overall | 9.4 L/100km | 6.1 L/100km |
| Fuel Tank Capacity | 66 L | 60 L |
