2003 Opel Signum vs. 2005 Mazda 6
To start off, 2005 Mazda 6 is newer by 2 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 1,996 cc (4 cylinders), 2005 Mazda 6 is equipped with a bigger engine. In terms of performance, 2005 Mazda 6 (143 HP @ 6000 RPM) has 18 more horse power than 2003 Opel Signum. (125 HP @ 6000 RPM) In normal driving conditions, 2005 Mazda 6 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 10 kg more than 2005 Mazda 6.
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, 2005 Mazda 6 (181 Nm @ 4500 RPM) has 14 more torque (in Nm) than 2003 Opel Signum. (167 Nm @ 3800 RPM). This means 2005 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2003 Opel Signum | 2005 Mazda 6 | |
| Make | Opel | Mazda |
| Model | Signum | 6 |
| Year Released | 2003 | 2005 |
| Body Type | Hatchback | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 1996 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 125 HP | 143 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 167 Nm | 181 Nm |
| Torque RPM | 3800 RPM | 4500 RPM |
| Engine Bore Size | 80.6 mm | 87.5 mm |
| Engine Stroke Size | 88.2 mm | 83.1 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1385 kg | 1375 kg |
| Vehicle Length | 4640 mm | 4690 mm |
| Vehicle Width | 1800 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2500 mm | 2710 mm |
| Fuel Consumption Overall | 7.5 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 58 L | 64 L |
