2005 Audi A3 vs. 2003 Opel Signum
To start off, 2005 Audi A3 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 2,172 cc (4 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 Audi A3 (139 HP @ 4000 RPM) has 24 more horse power than 2003 Opel Signum. (115 HP @ 3000 RPM). In normal driving conditions, 2005 Audi A3 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 150 kg more than 2005 Audi A3.
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 Audi A3 (320 Nm @ 1750 RPM) has 40 more torque (in Nm) than 2003 Opel Signum. (280 Nm @ 1500 RPM). This means 2005 Audi A3 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2005 Audi A3 | 2003 Opel Signum | |
| Make | Audi | Opel |
| Model | A3 | Signum |
| Year Released | 2005 | 2003 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 2172 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 139 HP | 115 HP |
| Engine RPM | 4000 RPM | 3000 RPM |
| Torque | 320 Nm | 280 Nm |
| Torque RPM | 1750 RPM | 1500 RPM |
| Engine Bore Size | 81 mm | 84.1 mm |
| Engine Stroke Size | 95.5 mm | 98 mm |
| Fuel Type | Diesel | Diesel |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1385 kg | 1535 kg |
| Vehicle Length | 4210 mm | 4640 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2470 mm | 2840 mm |
