2005 BMW Z4 vs. 2002 Opel Signum
To start off, 2005 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Opel Signum. In addition, the cost of maintenance, including insurance, on 2002 Opel Signum would be higher. At 3,175 cc (6 cylinders), 2002 Opel Signum is equipped with a bigger engine. In terms of performance, 2002 Opel Signum (208 HP @ 6200 RPM) has 40 more horse power than 2005 BMW Z4. (168 HP @ 6250 RPM) In normal driving conditions, 2002 Opel Signum should accelerate faster than 2005 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2002 Opel Signum weights approximately 285 kg more than 2005 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 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 2005 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2002 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, 2002 Opel Signum (300 Nm @ 4000 RPM) has 90 more torque (in Nm) than 2005 BMW Z4. (210 Nm @ 3500 RPM). This means 2002 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW Z4.
Compare all specifications:
2005 BMW Z4 | 2002 Opel Signum | |
Make | BMW | Opel |
Model | Z4 | Signum |
Year Released | 2005 | 2002 |
Body Type | Convertible | Hatchback |
Engine Position | Front | Front |
Engine Size | 2171 cc | 3175 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 168 HP | 208 HP |
Engine RPM | 6250 RPM | 6200 RPM |
Torque | 210 Nm | 300 Nm |
Torque RPM | 3500 RPM | 4000 RPM |
Engine Bore Size | 80 mm | 87.5 mm |
Engine Stroke Size | 72 mm | 88 mm |
Engine Compression Ratio | 10.8:1 | 10.0:1 |
Fuel Type | Gasoline - Premium | Gasoline - Premium |
Top Speed | 225 km/hour | 237 km/hour |
Drive Type | Rear | Front |
Transmission Type | Manual | Manual |
Number of Seats | 2 seats | 5 seats |
Number of Doors | 2 doors | 5 doors |
Vehicle Weight | 1325 kg | 1610 kg |
Vehicle Length | 4100 mm | 4640 mm |
Vehicle Width | 1790 mm | 1800 mm |
Vehicle Height | 1310 mm | 1470 mm |
Wheelbase Size | 2500 mm | 2840 mm |
Fuel Consumption Overall | 8.9 L/100km | 10.1 L/100km |
Fuel Tank Capacity | 55 L | 61 L |