2009 Audi A4 vs. 2006 Opel Signum
To start off, 2009 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Opel Signum. In addition, the cost of maintenance, including insurance, on 2006 Opel Signum would be higher. At 2,698 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (187 HP @ 3500 RPM) has 69 more horse power than 2006 Opel Signum. (118 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2006 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 55 kg more than 2006 Opel Signum. 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, 2009 Audi A4 (400 Nm @ 1400 RPM) has 119 more torque (in Nm) than 2006 Opel Signum. (281 Nm @ 2000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Signum.
Compare all specifications:
| 2009 Audi A4 | 2006 Opel Signum | |
| Make | Audi | Opel |
| Model | A4 | Signum |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 187 HP | 118 HP |
| Engine RPM | 3500 RPM | 4000 RPM |
| Torque | 400 Nm | 281 Nm |
| Torque RPM | 1400 RPM | 2000 RPM |
| Engine Bore Size | 83.1 mm | 82 mm |
| Engine Stroke Size | 83.1 mm | 90.4 mm |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 7.9 seconds | 12.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1670 kg | 1615 kg |
| Vehicle Length | 4710 mm | 4640 mm |
| Vehicle Width | 1830 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2810 mm | 2840 mm |
| Fuel Consumption Overall | 6 L/100km | 6 L/100km |
| Fuel Tank Capacity | 65 L | 60 L |
