2007 Audi A3 vs. 2005 Opel Signum
To start off, 2007 Audi A3 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Opel Signum. In addition, the cost of maintenance, including insurance, on 2005 Opel Signum would be higher. At 2,958 cc (6 cylinders), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 Opel Signum (175 HP @ 4000 RPM) has 27 more horse power than 2007 Audi A3. (148 HP @ 6000 RPM) In normal driving conditions, 2005 Opel Signum should accelerate faster than 2007 Audi A3. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 325 kg more than 2007 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, 2005 Opel Signum (370 Nm @ 1900 RPM) has 170 more torque (in Nm) than 2007 Audi A3. (200 Nm @ 3500 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A3. 2007 Audi A3 has automatic transmission and 2005 Opel Signum has manual transmission. 2005 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Audi A3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Audi A3 | 2005 Opel Signum | |
| Make | Audi | Opel |
| Model | A3 | Signum |
| Year Released | 2007 | 2005 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 175 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 200 Nm | 370 Nm |
| Torque RPM | 3500 RPM | 1900 RPM |
| Engine Bore Size | 82.5 mm | 87.5 mm |
| Engine Stroke Size | 92.8 mm | 82 mm |
| Engine Compression Ratio | 11.5:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 209 km/hour | 221 km/hour |
| Acceleration 0-100mph | 9.7 seconds | 9.4 seconds |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1345 kg | 1670 kg |
| Vehicle Length | 4290 mm | 4640 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2580 mm | 2620 mm |
| Fuel Consumption Overall | 7.8 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 55 L | 60 L |
