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 3,246 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (338 HP @ 7900 RPM) has 282 more horse power than 1991 Opel Astra. (56 HP @ 4600 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 450 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 (365 Nm @ 4900 RPM) has 260 more torque (in Nm) than 1991 Opel Astra. (105 Nm @ 2400 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 |
Body Type | Convertible | Sedan |
Engine Position | Front | Front |
Engine Size | 3246 cc | 1698 cc |
Engine Cylinders | 6 cylinders | 4 cylinders |
Engine Type | in-line | in-line |
Horse Power | 338 HP | 56 HP |
Engine RPM | 7900 RPM | 4600 RPM |
Torque | 365 Nm | 105 Nm |
Torque RPM | 4900 RPM | 2400 RPM |
Engine Bore Size | 87 mm | 82.5 mm |
Engine Stroke Size | 91 mm | 79.5 mm |
Engine Compression Ratio | 11.5:1 | 23.0:1 |
Top Speed | 250 km/hour | 150 km/hour |
Drive Type | Rear | Front |
Transmission Type | Manual | Manual |
Number of Seats | 2 seats | 5 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Weight | 1485 kg | 1035 kg |
Vehicle Length | 4120 mm | 4250 mm |
Vehicle Width | 1790 mm | 1690 mm |
Vehicle Height | 1310 mm | 1430 mm |
Wheelbase Size | 2500 mm | 2530 mm |
Fuel Tank Capacity | 55 L | 52 L |