2005 Audi A4 vs. 1998 Opel Signum
To start off, 2005 Audi A4 is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Opel Signum. In addition, the cost of maintenance, including insurance, on 1998 Opel Signum would be higher. At 2,496 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (161 HP @ 4000 RPM) has 62 more horse power than 1998 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 1998 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1998 Opel Signum weights approximately 85 kg more than 2005 Audi A4.
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, 2005 Audi A4 (350 Nm @ 1500 RPM) has 165 more torque (in Nm) than 1998 Opel Signum. (185 Nm @ 1500 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Signum.
Compare all specifications:
| 2005 Audi A4 | 1998 Opel Signum | |
| Make | Audi | Opel |
| Model | A4 | Signum |
| Year Released | 2005 | 1998 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 1909 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 161 HP | 99 HP |
| Engine RPM | 4000 RPM | 3120 RPM |
| Torque | 350 Nm | 185 Nm |
| Torque RPM | 1500 RPM | 1500 RPM |
| Engine Bore Size | 78.4 mm | 84 mm |
| Engine Stroke Size | 86.4 mm | 90 mm |
| Engine Compression Ratio | 18.0:1 | 18.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1510 kg | 1595 kg |
| Vehicle Length | 4550 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 60 L |
