1999 Opel Signum vs. 2013 Audi A8
To start off, 2013 Audi A8 is newer by 14 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 3,175 cc (6 cylinders), 1999 Opel Signum is equipped with a bigger engine. In terms of performance, 2013 Audi A8 (328 HP) has 120 more horse power than 1999 Opel Signum. (208 HP) In normal driving conditions, 2013 Audi A8 should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2013 Audi A8 weights approximately 220 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.
Because 2013 Audi A8 is all wheel drive (AWD), it will have significant more traction and grip than 1999 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2013 Audi A8 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, 2013 Audi A8 (441 Nm) has 141 more torque (in Nm) than 1999 Opel Signum. (300 Nm). This means 2013 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Signum.
Compare all specifications:
| 1999 Opel Signum | 2013 Audi A8 | |
| Make | Opel | Audi |
| Model | Signum | A8 |
| Year Released | 1999 | 2013 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3175 cc | 3000 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | W |
| Valves per Cylinder | 4 valves | 6 valves |
| Horse Power | 208 HP | 328 HP |
| Torque | 300 Nm | 441 Nm |
| Engine Bore Size | 87.5 mm | 84.5 mm |
| Engine Stroke Size | 88 mm | 89.5 mm |
| Engine Compression Ratio | 10.0:1 | 10.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 237 km/hour | 250 km/hour |
| Drive Type | Front | AWD |
| Transmission Type | Manual | CVT |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1610 kg | 1830 kg |
| Vehicle Length | 4640 mm | 5137 mm |
| Vehicle Width | 1800 mm | 2111 mm |
| Vehicle Height | 1470 mm | 1460 mm |
| Wheelbase Size | 2840 mm | 2992 mm |
