1973 Opel Kadett vs. 1984 Renault 25
To start off, 1984 Renault 25 is newer by 11 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 2,165 cc (4 cylinders), 1984 Renault 25 is equipped with a bigger engine. In terms of performance, 1984 Renault 25 (123 HP @ 5250 RPM) has 76 more horse power than 1973 Opel Kadett. (47 HP @ 5600 RPM) In normal driving conditions, 1984 Renault 25 should accelerate faster than 1973 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 1984 Renault 25 weights approximately 440 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.
Because 1973 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 1973 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 (182 Nm @ 2750 RPM) has 111 more torque (in Nm) than 1973 Opel Kadett. (71 Nm @ 2700 RPM). This means 1984 Renault 25 will have an easier job in driving up hills or pulling heavy equipment than 1973 Opel Kadett.
Compare all specifications:
| 1973 Opel Kadett | 1984 Renault 25 | |
| Make | Opel | Renault |
| Model | Kadett | 25 |
| Year Released | 1973 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 1078 cc | 2165 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 47 HP | 123 HP |
| Engine RPM | 5600 RPM | 5250 RPM |
| Torque | 71 Nm | 182 Nm |
| Torque RPM | 2700 RPM | 2750 RPM |
| Engine Bore Size | 72.1 mm | 88 mm |
| Engine Stroke Size | 61 mm | 89 mm |
| Engine Compression Ratio | 8.8:1 | 9.9:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 760 kg | 1200 kg |
| Vehicle Length | 4190 mm | 4630 mm |
| Vehicle Width | 1590 mm | 1780 mm |
| Vehicle Height | 1420 mm | 1410 mm |
| Wheelbase Size | 2400 mm | 2730 mm |
| Fuel Tank Capacity | 43 L | 34 L |
