2006 BMW Z4 vs. 1990 Opel Kadett
To start off, 2006 BMW Z4 is newer by 16 year(s). Which means there will be less support and parts availability for 1990 Opel Kadett. In addition, the cost of maintenance, including insurance, on 1990 Opel Kadett would be higher. At 2,492 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (189 HP @ 6000 RPM) has 108 more horse power than 1990 Opel Kadett. (81 HP @ 5800 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 1990 Opel Kadett.
Because 2006 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 2006 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 1990 Opel Kadett, 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, 2006 BMW Z4 (245 Nm @ 3500 RPM) has 113 more torque (in Nm) than 1990 Opel Kadett. (132 Nm @ 2600 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1990 Opel Kadett.
Compare all specifications:
| 2006 BMW Z4 | 1990 Opel Kadett | |
| Make | BMW | Opel |
| Model | Z4 | Kadett |
| Year Released | 2006 | 1990 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 1598 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 189 HP | 81 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 245 Nm | 132 Nm |
| Torque RPM | 3500 RPM | 2600 RPM |
| Engine Bore Size | 84 mm | 80 mm |
| Engine Stroke Size | 75 mm | 79.5 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Vehicle Length | 4100 mm | 4000 mm |
| Vehicle Width | 1790 mm | 1670 mm |
| Vehicle Height | 1310 mm | 1390 mm |
