1975 BMW 315 vs. 2007 Mazda RX-8
To start off, 2007 Mazda RX-8 is newer by 32 year(s). Which means there will be less support and parts availability for 1975 BMW 315. In addition, the cost of maintenance, including insurance, on 1975 BMW 315 would be higher. At 1,574 cc (4 cylinders), 1975 BMW 315 is equipped with a bigger engine. In terms of performance, 2007 Mazda RX-8 (189 HP @ 7000 RPM) has 114 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 2007 Mazda RX-8 should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mazda RX-8 weights approximately 415 kg more than 1975 BMW 315. 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 Mazda RX-8 (220 Nm @ 5000 RPM) has 110 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 2007 Mazda RX-8 will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 315.
Compare all specifications:
| 1975 BMW 315 | 2007 Mazda RX-8 | |
| Make | BMW | Mazda |
| Model | 315 | RX-8 |
| Year Released | 1975 | 2007 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 1306 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 75 HP | 189 HP |
| Engine RPM | 5800 RPM | 7000 RPM |
| Torque | 110 Nm | 220 Nm |
| Torque RPM | 3200 RPM | 5000 RPM |
| Engine Compression Ratio | 9.5:1 | 10.0:1 |
| Top Speed | 154 km/hour | 223 km/hour |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1010 kg | 1425 kg |
| Vehicle Length | 4360 mm | 4440 mm |
| Vehicle Width | 1620 mm | 1780 mm |
| Vehicle Height | 1390 mm | 1350 mm |
| Wheelbase Size | 2510 mm | 2710 mm |
