1970 Alfa Romeo Spider vs. 1973 Opel Kadett
To start off, 1973 Opel Kadett is newer by 3 year(s). Which means there will be less support and parts availability for 1970 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1970 Alfa Romeo Spider would be higher. At 1,290 cc (4 cylinders), 1970 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 1970 Alfa Romeo Spider (103 HP @ 6000 RPM) has 52 more horse power than 1973 Opel Kadett. (51 HP @ 5600 RPM). In normal driving conditions, 1970 Alfa Romeo Spider should accelerate faster than 1973 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 1970 Alfa Romeo Spider weights approximately 170 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.
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, 1970 Alfa Romeo Spider (138 Nm @ 3200 RPM) has 58 more torque (in Nm) than 1973 Opel Kadett. (80 Nm @ 3400 RPM). This means 1970 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 1973 Opel Kadett.
Compare all specifications:
| 1970 Alfa Romeo Spider | 1973 Opel Kadett | |
| Make | Alfa Romeo | Opel |
| Model | Spider | Kadett |
| Year Released | 1970 | 1973 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1290 cc | 1196 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 103 HP | 51 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 138 Nm | 80 Nm |
| Torque RPM | 3200 RPM | 3400 RPM |
| Engine Bore Size | 78 mm | 79 mm |
| Engine Stroke Size | 67.5 mm | 61 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 990 kg | 820 kg |
| Vehicle Length | 4130 mm | 4150 mm |
| Vehicle Width | 1630 mm | 1590 mm |
| Vehicle Height | 1300 mm | 1340 mm |
| Wheelbase Size | 2260 mm | 2410 mm |
| Fuel Tank Capacity | 46 L | 43 L |
