2007 BMW Z4 vs. 1991 Opel Astra
To start off, 2007 BMW Z4 is newer by 16 year(s). Which means there will be less support and parts availability for 1991 Opel Astra. In addition, the cost of maintenance, including insurance, on 1991 Opel Astra would be higher. At 2,171 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (168 HP @ 6250 RPM) has 109 more horse power than 1991 Opel Astra. (59 HP @ 5200 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Z4 weights approximately 395 kg more than 1991 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 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 2007 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 1991 Opel Astra, 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, 2007 BMW Z4 (210 Nm @ 3500 RPM) has 107 more torque (in Nm) than 1991 Opel Astra. (103 Nm @ 2800 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
2007 BMW Z4 | 1991 Opel Astra | |
Make | BMW | Opel |
Model | Z4 | Astra |
Year Released | 2007 | 1991 |
Engine Position | Front | Front |
Engine Size | 2171 cc | 1389 cc |
Engine Cylinders | 6 cylinders | 4 cylinders |
Engine Type | in-line | in-line |
Horse Power | 168 HP | 59 HP |
Engine RPM | 6250 RPM | 5200 RPM |
Torque | 210 Nm | 103 Nm |
Torque RPM | 3500 RPM | 2800 RPM |
Engine Bore Size | 80 mm | 77.6 mm |
Engine Stroke Size | 72 mm | 73.4 mm |
Engine Compression Ratio | 10.8:1 | 9.4:1 |
Top Speed | 225 km/hour | 160 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 | 930 kg |
Vehicle Length | 4100 mm | 4060 mm |
Vehicle Width | 1790 mm | 1690 mm |
Vehicle Height | 1310 mm | 1430 mm |
Wheelbase Size | 2500 mm | 2530 mm |
Fuel Tank Capacity | 55 L | 75 L |