2009 BMW Z4 vs. 1975 Opel Ascona
To start off, 2009 BMW Z4 is newer by 34 year(s). Which means there will be less support and parts availability for 1975 Opel Ascona. In addition, the cost of maintenance, including insurance, on 1975 Opel Ascona would be higher. At 2,497 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (176 HP @ 5800 RPM) has 86 more horse power than 1975 Opel Ascona. (90 HP @ 4800 RPM). In normal driving conditions, 2009 BMW Z4 should accelerate faster than 1975 Opel Ascona. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW Z4 weights approximately 343 kg more than 1975 Opel Ascona. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2009 BMW Z4 (230 Nm @ 3500 RPM) has 84 more torque (in Nm) than 1975 Opel Ascona. (146 Nm @ 3800 RPM). This means 2009 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1975 Opel Ascona.
Compare all specifications:
| 2009 BMW Z4 | 1975 Opel Ascona | |
| Make | BMW | Opel |
| Model | Z4 | Ascona |
| Year Released | 2009 | 1975 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 1897 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 176 HP | 90 HP |
| Engine RPM | 5800 RPM | 4800 RPM |
| Torque | 230 Nm | 146 Nm |
| Torque RPM | 3500 RPM | 3800 RPM |
| Engine Bore Size | 82 mm | 93 mm |
| Engine Stroke Size | 78.8 mm | 69.8 mm |
| Engine Compression Ratio | 11.0:1 | 8.8:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1345 kg | 1002 kg |
| Vehicle Length | 4100 mm | 4130 mm |
| Vehicle Width | 1790 mm | 1630 mm |
| Vehicle Height | 1310 mm | 1390 mm |
| Wheelbase Size | 2500 mm | 2520 mm |
| Fuel Tank Capacity | 55 L | 50 L |
