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 2,958 cc (6 cylinders), 2006 Opel Signum is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (187 HP @ 3500 RPM) has 12 more horse power than 2006 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2006 Opel Signum.
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 30 more torque (in Nm) than 2006 Opel Signum. (370 Nm @ 1900 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 | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 187 HP | 175 HP |
| Engine RPM | 3500 RPM | 4000 RPM |
| Torque | 400 Nm | 370 Nm |
| Torque RPM | 1400 RPM | 1900 RPM |
| Engine Bore Size | 83.1 mm | 87.5 mm |
| Engine Stroke Size | 83.1 mm | 82 mm |
| Engine Compression Ratio | 16.8:1 | 18.5:1 |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 7.9 seconds | 9.4 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 | 1670 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 | 7.6 L/100km |
| Fuel Tank Capacity | 65 L | 60 L |
