1999 Opel Signum vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 10 year(s). Which means there will be less support and parts availability for 1999 Opel Signum. In addition, the cost of maintenance, including insurance, on 1999 Opel Signum would be higher. At 3,175 cc (6 cylinders), 1999 Opel Signum is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (222 HP @ 4000 RPM) has 14 more horse power than 1999 Opel Signum. (208 HP @ 6200 RPM) In normal driving conditions, 2009 Audi A4 should accelerate faster than 1999 Opel Signum.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 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, 2009 Audi A4 (450 Nm @ 1400 RPM) has 150 more torque (in Nm) than 1999 Opel Signum. (300 Nm @ 4000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Signum. 2009 Audi A4 has automatic transmission and 1999 Opel Signum has manual transmission. 1999 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Opel Signum | 2009 Audi A4 | |
| Make | Opel | Audi |
| Model | Signum | A4 |
| Year Released | 1999 | 2009 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3175 cc | 2965 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 208 HP | 222 HP |
| Engine RPM | 6200 RPM | 4000 RPM |
| Torque | 300 Nm | 450 Nm |
| Torque RPM | 4000 RPM | 1400 RPM |
| Engine Bore Size | 87.5 mm | 83 mm |
| Engine Stroke Size | 88 mm | 91.4 mm |
| Engine Compression Ratio | 10.0:1 | 17.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 237 km/hour | 235 km/hour |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1610 kg | 1610 kg |
| Vehicle Length | 4640 mm | 4550 mm |
| Vehicle Width | 1800 mm | 1780 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2840 mm | 2660 mm |
| Fuel Tank Capacity | 52 L | 70 L |
