1975 Opel Kadett vs. 2007 Opel Speedster
To start off, 2007 Opel Speedster is newer by 32 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 1,998 cc (4 cylinders), 2007 Opel Speedster is equipped with a bigger engine. In terms of performance, 2007 Opel Speedster (197 HP @ 5500 RPM) has 146 more horse power than 1975 Opel Kadett. (51 HP @ 5600 RPM) In normal driving conditions, 2007 Opel Speedster should accelerate faster than 1975 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Speedster weights approximately 185 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.
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, 2007 Opel Speedster (250 Nm @ 1950 RPM) has 169 more torque (in Nm) than 1975 Opel Kadett. (81 Nm @ 3400 RPM). This means 2007 Opel Speedster will have an easier job in driving up hills or pulling heavy equipment than 1975 Opel Kadett. 1975 Opel Kadett has automatic transmission and 2007 Opel Speedster has manual transmission. 2007 Opel Speedster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1975 Opel Kadett will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1975 Opel Kadett | 2007 Opel Speedster | |
| Make | Opel | Opel |
| Model | Kadett | Speedster |
| Year Released | 1975 | 2007 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 1196 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 51 HP | 197 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 81 Nm | 250 Nm |
| Torque RPM | 3400 RPM | 1950 RPM |
| Engine Bore Size | 79 mm | 86 mm |
| Engine Stroke Size | 61 mm | 86 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 820 kg | 1005 kg |
| Vehicle Length | 4150 mm | 3790 mm |
| Vehicle Width | 1590 mm | 1710 mm |
| Vehicle Height | 1340 mm | 1120 mm |
| Wheelbase Size | 2410 mm | 2340 mm |
| Fuel Tank Capacity | 43 L | 36 L |
