2003 BMW Z4 vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 2 year(s). Which means there will be less support and parts availability for 2003 BMW Z4. In addition, the cost of maintenance, including insurance, on 2003 BMW Z4 would be higher. At 2,999 cc (6 cylinders), 2003 BMW Z4 is equipped with a bigger engine. In terms of performance, 2003 BMW Z4 (227 HP @ 6000 RPM) has 54 more horse power than 2005 Opel Signum. (173 HP @ 5500 RPM). In normal driving conditions, 2003 BMW Z4 should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 270 kg more than 2003 BMW Z4.
Because 2003 BMW Z4 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2005 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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, 2003 BMW Z4 (291 Nm @ 3500 RPM) has 26 more torque (in Nm) than 2005 Opel Signum. (265 Nm @ 2500 RPM). This means 2003 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum.
Compare all specifications:
2003 BMW Z4 | 2005 Opel Signum | |
Make | BMW | Opel |
Model | Z4 | Signum |
Year Released | 2003 | 2005 |
Body Type | Convertible | Hatchback |
Engine Position | Front | Front |
Engine Size | 2999 cc | 1908 cc |
Engine Cylinders | 6 cylinders | 4 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 227 HP | 173 HP |
Engine RPM | 6000 RPM | 5500 RPM |
Torque | 291 Nm | 265 Nm |
Torque RPM | 3500 RPM | 2500 RPM |
Engine Bore Size | 84 mm | 86 mm |
Engine Stroke Size | 90 mm | 86 mm |
Fuel Type | Gasoline | Gasoline - Premium |
Drive Type | Rear | Front |
Transmission Type | Manual | Manual |
Number of Seats | 2 seats | 5 seats |
Number of Doors | 2 doors | 5 doors |
Vehicle Weight | 1290 kg | 1560 kg |
Vehicle Length | 4100 mm | 4640 mm |
Vehicle Width | 1790 mm | 1800 mm |
Vehicle Height | 1310 mm | 1470 mm |
Wheelbase Size | 2500 mm | 2620 mm |
Fuel Tank Capacity | 55 L | 60 L |