2007 Mazda 6 vs. 2003 Opel Signum
To start off, 2007 Mazda 6 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 1,998 cc (4 cylinders), 2007 Mazda 6 is equipped with a bigger engine. In terms of performance, 2007 Mazda 6 (134 HP @ 3500 RPM) has 9 more horse power than 2003 Opel Signum. (125 HP @ 6000 RPM). In normal driving conditions, 2007 Mazda 6 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mazda 6 weights approximately 155 kg more than 2003 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, 2007 Mazda 6 (310 Nm @ 2000 RPM) has 143 more torque (in Nm) than 2003 Opel Signum. (167 Nm @ 3800 RPM). This means 2007 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2007 Mazda 6 | 2003 Opel Signum | |
| Make | Mazda | Opel |
| Model | 6 | Signum |
| Year Released | 2007 | 2003 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 134 HP | 125 HP |
| Engine RPM | 3500 RPM | 6000 RPM |
| Torque | 310 Nm | 167 Nm |
| Torque RPM | 2000 RPM | 3800 RPM |
| Engine Bore Size | 86 mm | 80.6 mm |
| Engine Stroke Size | 86 mm | 88.2 mm |
| Engine Compression Ratio | 18.3:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1540 kg | 1385 kg |
| Vehicle Length | 4710 mm | 4640 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1490 mm | 1470 mm |
| Wheelbase Size | 2680 mm | 2500 mm |
| Fuel Consumption Overall | 6.4 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 64 L | 58 L |
