1978 Mazda RX-7 vs. 1999 Opel Speedster
To start off, 1999 Opel Speedster is newer by 21 year(s). Which means there will be less support and parts availability for 1978 Mazda RX-7. In addition, the cost of maintenance, including insurance, on 1978 Mazda RX-7 would be higher. At 2,292 cc, 1978 Mazda RX-7 is equipped with a bigger engine. In terms of performance, 1999 Opel Speedster (147 HP @ 5800 RPM) has 42 more horse power than 1978 Mazda RX-7. (105 HP @ 6000 RPM) In normal driving conditions, 1999 Opel Speedster should accelerate faster than 1978 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 1978 Mazda RX-7 weights approximately 115 kg more than 1999 Opel Speedster.
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, 1999 Opel Speedster (202 Nm @ 4000 RPM) has 57 more torque (in Nm) than 1978 Mazda RX-7. (145 Nm @ 4000 RPM). This means 1999 Opel Speedster will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda RX-7.
Compare all specifications:
| 1978 Mazda RX-7 | 1999 Opel Speedster | |
| Make | Mazda | Opel |
| Model | RX-7 | Speedster |
| Year Released | 1978 | 1999 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 2292 cc | 2199 cc |
| Engine Type | dual-disk rotary | in-line |
| Horse Power | 105 HP | 147 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 145 Nm | 202 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Compression Ratio | 9.4:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 185 km/hour | 220 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1060 kg | 945 kg |
| Vehicle Length | 4290 mm | 3790 mm |
| Vehicle Width | 1680 mm | 1710 mm |
| Vehicle Height | 1280 mm | 1120 mm |
| Wheelbase Size | 2430 mm | 2340 mm |
| Fuel Tank Capacity | 65 L | 52 L |
