1972 Mazda RX-4 vs. 2005 Opel Speedster
To start off, 2005 Opel Speedster is newer by 33 year(s). Which means there will be less support and parts availability for 1972 Mazda RX-4. In addition, the cost of maintenance, including insurance, on 1972 Mazda RX-4 would be higher. At 2,616 cc, 1972 Mazda RX-4 is equipped with a bigger engine. In terms of performance, 2005 Opel Speedster (197 HP @ 5500 RPM) has 83 more horse power than 1972 Mazda RX-4. (114 HP @ 6000 RPM) In normal driving conditions, 2005 Opel Speedster should accelerate faster than 1972 Mazda RX-4. With that said, vehicle weight also plays an important factor in acceleration. 1972 Mazda RX-4 weights approximately 105 kg more than 2005 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, 2005 Opel Speedster (251 Nm @ 1950 RPM) has 86 more torque (in Nm) than 1972 Mazda RX-4. (165 Nm @ 4000 RPM). This means 2005 Opel Speedster will have an easier job in driving up hills or pulling heavy equipment than 1972 Mazda RX-4.
Compare all specifications:
| 1972 Mazda RX-4 | 2005 Opel Speedster | |
| Make | Mazda | Opel |
| Model | RX-4 | Speedster |
| Year Released | 1972 | 2005 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 2616 cc | 1998 cc |
| Engine Type | dual-disk rotary | in-line |
| Horse Power | 114 HP | 197 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 165 Nm | 251 Nm |
| Torque RPM | 4000 RPM | 1950 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1110 kg | 1005 kg |
| Vehicle Length | 4400 mm | 3790 mm |
| Vehicle Width | 1670 mm | 1710 mm |
| Vehicle Height | 1390 mm | 1120 mm |
| Wheelbase Size | 2520 mm | 2340 mm |
