2005 Audi A4 vs. 1999 Opel Signum
To start off, 2005 Audi A4 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Opel Signum. In addition, the cost of maintenance, including insurance, on 1999 Opel Signum would be higher. At 2,976 cc (6 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (217 HP @ 4000 RPM) has 118 more horse power than 1999 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 103 kg more than 1999 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi A4 (300 Nm) has 60 more torque (in Nm) than 1999 Opel Signum. (240 Nm). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Signum.
Compare all specifications:
| 2005 Audi A4 | 1999 Opel Signum | |
| Make | Audi | Opel |
| Model | A4 | Signum |
| Year Released | 2005 | 1999 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 99 HP |
| Engine RPM | 4000 RPM | 3120 RPM |
| Torque | 300 Nm | 240 Nm |
| Engine Bore Size | 83 mm | 84 mm |
| Engine Stroke Size | 93 mm | 90 mm |
| Engine Compression Ratio | 10.1:1 | 18.5:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1698 kg | 1595 kg |
| Vehicle Length | 4580 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 60 L |
