1975 Alfa Romeo Spider vs. 1977 Opel Kadett
To start off, 1977 Opel Kadett is newer by 2 year(s). Which means there will be less support and parts availability for 1975 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1975 Alfa Romeo Spider would be higher. At 1,287 cc (4 cylinders), 1975 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 1975 Alfa Romeo Spider (89 HP @ 6000 RPM) has 38 more horse power than 1977 Opel Kadett. (51 HP @ 5600 RPM). In normal driving conditions, 1975 Alfa Romeo Spider should accelerate faster than 1977 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 1975 Alfa Romeo Spider weights approximately 190 kg more than 1977 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, 1975 Alfa Romeo Spider (121 Nm) has 40 more torque (in Nm) than 1977 Opel Kadett. (81 Nm). This means 1975 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 1977 Opel Kadett.
Compare all specifications:
| 1975 Alfa Romeo Spider | 1977 Opel Kadett | |
| Make | Alfa Romeo | Opel |
| Model | Spider | Kadett |
| Year Released | 1975 | 1977 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1287 cc | 1196 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 89 HP | 51 HP |
| Engine RPM | 6000 RPM | 5600 RPM |
| Torque | 121 Nm | 81 Nm |
| Engine Bore Size | 80 mm | 79 mm |
| Engine Stroke Size | 67.5 mm | 61 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 980 kg | 790 kg |
| Vehicle Length | 4130 mm | 4140 mm |
| Vehicle Width | 1640 mm | 1590 mm |
| Vehicle Height | 1300 mm | 1290 mm |
| Wheelbase Size | 2260 mm | 2410 mm |
