2004 BMW Z4 vs. 1975 Opel Kadett
To start off, 2004 BMW Z4 is newer by 29 year(s). Which means there will be less support and parts availability for 1975 Opel Kadett. In addition, the cost of maintenance, including insurance, on 1975 Opel Kadett would be higher. At 2,171 cc (6 cylinders), 2004 BMW Z4 is equipped with a bigger engine. In terms of performance, 2004 BMW Z4 (168 HP @ 6250 RPM) has 117 more horse power than 1975 Opel Kadett. (51 HP @ 5600 RPM). In normal driving conditions, 2004 BMW Z4 should accelerate faster than 1975 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW Z4 weights approximately 505 kg more than 1975 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, 2004 BMW Z4 (210 Nm @ 3500 RPM) has 129 more torque (in Nm) than 1975 Opel Kadett. (81 Nm @ 3400 RPM). This means 2004 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1975 Opel Kadett. 1975 Opel Kadett has automatic transmission and 2004 BMW Z4 has manual transmission. 2004 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1975 Opel Kadett will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 BMW Z4 | 1975 Opel Kadett | |
| Make | BMW | Opel |
| Model | Z4 | Kadett |
| Year Released | 2004 | 1975 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 1196 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 168 HP | 51 HP |
| Engine RPM | 6250 RPM | 5600 RPM |
| Torque | 210 Nm | 81 Nm |
| Torque RPM | 3500 RPM | 3400 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1325 kg | 820 kg |
| Vehicle Length | 4100 mm | 4150 mm |
| Vehicle Width | 1790 mm | 1590 mm |
| Vehicle Height | 1310 mm | 1340 mm |
| Wheelbase Size | 2500 mm | 2410 mm |
| Fuel Tank Capacity | 55 L | 43 L |
