2008 Audi A3 vs. 2007 Opel Signum
To start off, 2008 Audi A3 is newer by 1 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 1,909 cc (4 cylinders), 2007 Opel Signum is equipped with a bigger engine. In terms of performance, 2007 Opel Signum (148 HP @ 4000 RPM) has 35 more horse power than 2008 Audi A3. (113 HP @ 6000 RPM) In normal driving conditions, 2007 Opel Signum should accelerate faster than 2008 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Signum weights approximately 273 kg more than 2008 Audi A3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2007 Opel Signum (315 Nm @ 2000 RPM) has 160 more torque (in Nm) than 2008 Audi A3. (155 Nm @ 4000 RPM). This means 2007 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A3.
Compare all specifications:
| 2008 Audi A3 | 2007 Opel Signum | |
| Make | Audi | Opel |
| Model | A3 | Signum |
| Year Released | 2008 | 2007 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 1909 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 113 HP | 148 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 155 Nm | 315 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Engine Bore Size | 76.6 mm | 82 mm |
| Engine Stroke Size | 86.9 mm | 90.4 mm |
| Engine Compression Ratio | 12.0:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 11.1 seconds | 10.5 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1340 kg | 1613 kg |
| Vehicle Length | 4290 mm | 4640 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2580 mm | 2840 mm |
| Fuel Consumption Overall | 6.6 L/100km | 6.1 L/100km |
| Fuel Tank Capacity | 55 L | 60 L |
