2007 Mazda 6 vs. 2004 Opel Signum
To start off, 2007 Mazda 6 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 2,261 cc (4 cylinders), 2007 Mazda 6 is equipped with a bigger engine. In terms of performance, 2007 Mazda 6 (164 HP @ 6500 RPM) has 65 more horse power than 2004 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2007 Mazda 6 should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 241 kg more than 2007 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, 2004 Opel Signum (230 Nm @ 1500 RPM) has 45 more torque (in Nm) than 2007 Mazda 6. (185 Nm @ 4000 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2007 Mazda 6.
Compare all specifications:
| 2007 Mazda 6 | 2004 Opel Signum | |
| Make | Mazda | Opel |
| Model | 6 | Signum |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2261 cc | 1910 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 164 HP | 99 HP |
| Engine RPM | 6500 RPM | 3120 RPM |
| Torque | 185 Nm | 230 Nm |
| Torque RPM | 4000 RPM | 1500 RPM |
| Engine Bore Size | 87.5 mm | 84.1 mm |
| Engine Stroke Size | 94 mm | 90 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1354 kg | 1595 kg |
| Vehicle Length | 4680 mm | 4640 mm |
| Vehicle Width | 1440 mm | 1800 mm |
| Vehicle Height | 1790 mm | 1470 mm |
| Wheelbase Size | 2680 mm | 2620 mm |
| Fuel Consumption Overall | 8.6 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 64 L | 58 L |
