1988 BMW 525 vs. 1971 Opel Kadett
To start off, 1988 BMW 525 is newer by 17 year(s). Which means there will be less support and parts availability for 1971 Opel Kadett. In addition, the cost of maintenance, including insurance, on 1971 Opel Kadett would be higher. At 2,494 cc (6 cylinders), 1988 BMW 525 is equipped with a bigger engine. In terms of performance, 1988 BMW 525 (165 HP @ 5800 RPM) has 106 more horse power than 1971 Opel Kadett. (59 HP @ 5400 RPM). In normal driving conditions, 1988 BMW 525 should accelerate faster than 1971 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 1988 BMW 525 weights approximately 815 kg more than 1971 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, 1988 BMW 525 (239 Nm @ 4300 RPM) has 151 more torque (in Nm) than 1971 Opel Kadett. (88 Nm @ 3400 RPM). This means 1988 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1971 Opel Kadett.
Compare all specifications:
| 1988 BMW 525 | 1971 Opel Kadett | |
| Make | BMW | Opel |
| Model | 525 | Kadett |
| Year Released | 1988 | 1971 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1196 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 165 HP | 59 HP |
| Engine RPM | 5800 RPM | 5400 RPM |
| Torque | 239 Nm | 88 Nm |
| Torque RPM | 4300 RPM | 3400 RPM |
| Engine Bore Size | 84 mm | 79 mm |
| Engine Stroke Size | 75 mm | 61 mm |
| Engine Compression Ratio | 8.8:1 | 9.0:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1575 kg | 760 kg |
| Vehicle Length | 4730 mm | 4190 mm |
| Vehicle Width | 1760 mm | 1590 mm |
| Vehicle Height | 1420 mm | 1420 mm |
| Wheelbase Size | 2630 mm | 2430 mm |
| Fuel Tank Capacity | 80 L | 40 L |
