2008 Mazda 6 vs. 2006 Opel Signum
To start off, 2008 Mazda 6 is newer by 2 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, 2006 Opel Signum (175 HP @ 4000 RPM) has 19 more horse power than 2008 Mazda 6. (156 HP @ 6500 RPM) In normal driving conditions, 2006 Opel Signum should accelerate faster than 2008 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 490 kg more than 2008 Mazda 6. 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, 2006 Opel Signum (370 Nm @ 1900 RPM) has 161 more torque (in Nm) than 2008 Mazda 6. (209 Nm @ 4000 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2008 Mazda 6.
Compare all specifications:
| 2008 Mazda 6 | 2006 Opel Signum | |
| Make | Mazda | Opel |
| Model | 6 | Signum |
| Year Released | 2008 | 2006 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2260 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 156 HP | 175 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 209 Nm | 370 Nm |
| Torque RPM | 4000 RPM | 1900 RPM |
| Engine Compression Ratio | 9.7:1 | 18.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1180 kg | 1670 kg |
| Vehicle Length | 4750 mm | 4640 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2680 mm | 2840 mm |
| Fuel Consumption Overall | 10 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 68 L | 60 L |
