2006 Audi A4 vs. 2004 Opel Signum
To start off, 2006 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 2,981 cc (6 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (220 HP @ 6300 RPM) has 121 more horse power than 2004 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2006 Audi A4 should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 175 kg more than 2004 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Audi A4 (300 Nm @ 3200 RPM) has 70 more torque (in Nm) than 2004 Opel Signum. (230 Nm @ 1500 RPM). This means 2006 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum.
Compare all specifications:
| 2006 Audi A4 | 2004 Opel Signum | |
| Make | Audi | Opel |
| Model | A4 | Signum |
| Year Released | 2006 | 2004 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2981 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 220 HP | 99 HP |
| Engine RPM | 6300 RPM | 3120 RPM |
| Torque | 300 Nm | 230 Nm |
| Torque RPM | 3200 RPM | 1500 RPM |
| Engine Bore Size | 82.5 mm | 84.1 mm |
| Engine Stroke Size | 92.8 mm | 90 mm |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Drive Type | 4WD | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1770 kg | 1595 kg |
| Vehicle Length | 4580 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2620 mm |
| Fuel Consumption Overall | 11.8 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 63 L | 58 L |
