1999 Audi A4 vs. 2003 Opel Signum
To start off, 2003 Opel Signum is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Audi A4. In addition, the cost of maintenance, including insurance, on 1999 Audi A4 would be higher. At 3,173 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 1999 Audi A4 (247 HP @ 4150 RPM) has 39 more horse power than 2003 Opel Signum. (208 HP @ 6200 RPM). In normal driving conditions, 1999 Audi A4 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 275 kg more than 1999 Audi A4.
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, 1999 Audi A4 (321 Nm @ 1900 RPM) has 21 more torque (in Nm) than 2003 Opel Signum. (300 Nm @ 4000 RPM). This means 1999 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum. 1999 Audi A4 has automatic transmission and 2003 Opel Signum has manual transmission. 2003 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Audi A4 | 2003 Opel Signum | |
| Make | Audi | Opel |
| Model | A4 | Signum |
| Year Released | 1999 | 2003 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 3173 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 247 HP | 208 HP |
| Engine RPM | 4150 RPM | 6200 RPM |
| Torque | 321 Nm | 300 Nm |
| Torque RPM | 1900 RPM | 4000 RPM |
| Engine Bore Size | 79.5 mm | 87.5 mm |
| Engine Stroke Size | 95.5 mm | 88 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 190 km/hour | 237 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1335 kg | 1610 kg |
| Vehicle Length | 4480 mm | 4640 mm |
| Vehicle Width | 1740 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2630 mm | 2740 mm |
| Fuel Tank Capacity | 62 L | 52 L |
