2006 Mazda 3 vs. 2003 Opel Signum
To start off, 2006 Mazda 3 is newer by 3 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 1,999 cc (4 cylinders), 2006 Mazda 3 is equipped with a bigger engine. In terms of performance, 2006 Mazda 3 (148 HP @ 6000 RPM) has 23 more horse power than 2003 Opel Signum. (125 HP @ 6000 RPM). In normal driving conditions, 2006 Mazda 3 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 75 kg more than 2006 Mazda 3.
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 Mazda 3 (187 Nm @ 4500 RPM) has 20 more torque (in Nm) than 2003 Opel Signum. (167 Nm @ 3800 RPM). This means 2006 Mazda 3 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2006 Mazda 3 | 2003 Opel Signum | |
| Make | Mazda | Opel |
| Model | 3 | Signum |
| Year Released | 2006 | 2003 |
| Body Type | Hatchback | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1999 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 125 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 187 Nm | 167 Nm |
| Torque RPM | 4500 RPM | 3800 RPM |
| Engine Bore Size | 87.5 mm | 80.6 mm |
| Engine Stroke Size | 83.1 mm | 88.2 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1310 kg | 1385 kg |
| Vehicle Length | 4430 mm | 4640 mm |
| Vehicle Width | 1760 mm | 1800 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2650 mm | 2500 mm |
| Fuel Consumption Overall | 8.2 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 55 L | 58 L |
