2009 Audi A6 vs. 2006 Opel Signum
To start off, 2009 Audi A6 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 2,995 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (300 HP @ 5100 RPM) has 147 more horse power than 2006 Opel Signum. (153 HP @ 5600 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2006 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 640 kg more than 2009 Audi A6.
Because 2009 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2009 Audi A6 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 A6 (420 Nm @ 2500 RPM) has 200 more torque (in Nm) than 2006 Opel Signum. (220 Nm @ 3800 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Signum.
Compare all specifications:
| 2009 Audi A6 | 2006 Opel Signum | |
| Make | Audi | Opel |
| Model | A6 | Signum |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2995 cc | 2198 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 300 HP | 153 HP |
| Engine RPM | 5100 RPM | 5600 RPM |
| Torque | 420 Nm | 220 Nm |
| Torque RPM | 2500 RPM | 3800 RPM |
| Engine Compression Ratio | 18.0:1 | 12.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 895 kg | 1535 kg |
| Vehicle Length | 4930 mm | 4640 mm |
| Vehicle Width | 2040 mm | 1800 mm |
| Vehicle Height | 1460 mm | 1470 mm |
| Wheelbase Size | 2850 mm | 2840 mm |
| Fuel Consumption Highway | 9.1 L/100km | 7.4 L/100km |
| Fuel Consumption City | 13.1 L/100km | 12.6 L/100km |
| Fuel Consumption Overall | 11.2 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 80 L | 60 L |
