2009 BMW Z4 vs. 1981 Opel Ascona
To start off, 2009 BMW Z4 is newer by 28 year(s). Which means there will be less support and parts availability for 1981 Opel Ascona. In addition, the cost of maintenance, including insurance, on 1981 Opel Ascona would be higher. At 3,246 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (338 HP @ 7900 RPM) has 257 more horse power than 1981 Opel Ascona. (81 HP @ 5400 RPM). In normal driving conditions, 2009 BMW Z4 should accelerate faster than 1981 Opel Ascona. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW Z4 weights approximately 471 kg more than 1981 Opel Ascona. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2009 BMW Z4 (365 Nm @ 4900 RPM) has 231 more torque (in Nm) than 1981 Opel Ascona. (134 Nm @ 2600 RPM). This means 2009 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Opel Ascona.
Compare all specifications:
| 2009 BMW Z4 | 1981 Opel Ascona | |
| Make | BMW | Opel |
| Model | Z4 | Ascona |
| Year Released | 2009 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 1598 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 338 HP | 81 HP |
| Engine RPM | 7900 RPM | 5400 RPM |
| Torque | 365 Nm | 134 Nm |
| Torque RPM | 4900 RPM | 2600 RPM |
| Engine Compression Ratio | 11.5:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1485 kg | 1014 kg |
| Vehicle Length | 4120 mm | 4380 mm |
| Vehicle Width | 1310 mm | 1680 mm |
| Vehicle Height | 1790 mm | 1400 mm |
| Wheelbase Size | 2500 mm | 2580 mm |
