2007 Opel Signum vs. 2013 Audi A8
To start off, 2013 Audi A8 is newer by 6 year(s). Which means there will be less support and parts availability for 2007 Opel Signum. In addition, the cost of maintenance, including insurance, on 2007 Opel Signum would be higher. At 3,991 cc (8 cylinders), 2013 Audi A8 is equipped with a bigger engine. In terms of performance, 2013 Audi A8 (367 HP @ 6800 RPM) has 214 more horse power than 2007 Opel Signum. (153 HP @ 5600 RPM) In normal driving conditions, 2013 Audi A8 should accelerate faster than 2007 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2013 Audi A8 weights approximately 489 kg more than 2007 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 2007 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 (445 Nm) has 225 more torque (in Nm) than 2007 Opel Signum. (220 Nm). This means 2013 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Signum.
Compare all specifications:
| 2007 Opel Signum | 2013 Audi A8 | |
| Make | Opel | Audi |
| Model | Signum | A8 |
| Year Released | 2007 | 2013 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2196 cc | 3991 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | W |
| Valves per Cylinder | 4 valves | 8 valves |
| Horse Power | 153 HP | 367 HP |
| Engine RPM | 5600 RPM | 6800 RPM |
| Torque | 220 Nm | 445 Nm |
| Engine Bore Size | 86 mm | 84.5 mm |
| Engine Stroke Size | 94.6 mm | 89.5 mm |
| Engine Compression Ratio | 12.0:1 | 10.1:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 211 km/hour | 209 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 | 1535 kg | 2024 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 |
| Fuel Consumption | 7.2 L/100km | 7.9 L/100km |
| Fuel Consumption City | 12.4 L/100km | 12 L/100km |
