2007 BMW Z4 vs. 1973 Opel Kadett
To start off, 2007 BMW Z4 is newer by 34 year(s). Which means there will be less support and parts availability for 1973 Opel Kadett. In addition, the cost of maintenance, including insurance, on 1973 Opel Kadett 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 287 more horse power than 1973 Opel Kadett. (51 HP @ 5600 RPM). In normal driving conditions, 2007 BMW Z4 should accelerate faster than 1973 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Z4 weights approximately 695 kg more than 1973 Opel Kadett. 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, 2007 BMW Z4 (365 Nm @ 4900 RPM) has 285 more torque (in Nm) than 1973 Opel Kadett. (80 Nm @ 3400 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1973 Opel Kadett.
Compare all specifications:
| 2007 BMW Z4 | 1973 Opel Kadett | |
| Make | BMW | Opel |
| Model | Z4 | Kadett |
| Year Released | 2007 | 1973 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 1196 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 338 HP | 51 HP |
| Engine RPM | 7900 RPM | 5600 RPM |
| Torque | 365 Nm | 80 Nm |
| Torque RPM | 4900 RPM | 3400 RPM |
| Engine Bore Size | 87 mm | 79 mm |
| Engine Stroke Size | 91 mm | 61 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1485 kg | 790 kg |
| Vehicle Length | 4120 mm | 4140 mm |
| Vehicle Width | 1790 mm | 1590 mm |
| Vehicle Height | 1310 mm | 1290 mm |
| Wheelbase Size | 2500 mm | 2410 mm |
| Fuel Tank Capacity | 55 L | 43 L |
