1975 Opel Kadett vs. 1984 Renault 25
To start off, 1984 Renault 25 is newer by 9 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 2,664 cc (6 cylinders), 1984 Renault 25 is equipped with a bigger engine. In terms of performance, 1984 Renault 25 (144 HP @ 5500 RPM) has 97 more horse power than 1975 Opel Kadett. (47 HP @ 5600 RPM) In normal driving conditions, 1984 Renault 25 should accelerate faster than 1975 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 1984 Renault 25 weights approximately 455 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.
Because 1975 Opel Kadett 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 1975 Opel Kadett. However, in wet, icy, snow, or gravel driving conditions, 1984 Renault 25, 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, 1984 Renault 25 (215 Nm @ 3000 RPM) has 144 more torque (in Nm) than 1975 Opel Kadett. (71 Nm @ 3400 RPM). This means 1984 Renault 25 will have an easier job in driving up hills or pulling heavy equipment than 1975 Opel Kadett.
Compare all specifications:
| 1975 Opel Kadett | 1984 Renault 25 | |
| Make | Opel | Renault |
| Model | Kadett | 25 |
| Year Released | 1975 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 993 cc | 2664 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 47 HP | 144 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 71 Nm | 215 Nm |
| Torque RPM | 3400 RPM | 3000 RPM |
| Engine Bore Size | 72.1 mm | 88 mm |
| Engine Stroke Size | 61 mm | 73 mm |
| Engine Compression Ratio | 8.8:1 | 9.2:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 835 kg | 1290 kg |
| Vehicle Length | 3900 mm | 4650 mm |
| Vehicle Width | 1590 mm | 1780 mm |
| Vehicle Height | 1320 mm | 1410 mm |
| Wheelbase Size | 2520 mm | 2730 mm |
