1975 BMW 315 vs. 2003 Opel Speedster
To start off, 2003 Opel Speedster is newer by 28 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 1,993 cc (4 cylinders), 2003 Opel Speedster is equipped with a bigger engine. In terms of performance, 2003 Opel Speedster (197 HP @ 5500 RPM) has 122 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 2003 Opel Speedster should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 1975 BMW 315 weights approximately 5 kg more than 2003 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, 2003 Opel Speedster (250 Nm @ 1950 RPM) has 140 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 2003 Opel Speedster will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 315.
Compare all specifications:
| 1975 BMW 315 | 2003 Opel Speedster | |
| Make | BMW | Opel |
| Model | 315 | Speedster |
| Year Released | 1975 | 2003 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 1574 cc | 1993 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 197 HP |
| Engine RPM | 5800 RPM | 5500 RPM |
| Torque | 110 Nm | 250 Nm |
| Torque RPM | 3200 RPM | 1950 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 71 mm | 86 mm |
| Engine Compression Ratio | 9.5:1 | 8.8:1 |
| Top Speed | 154 km/hour | 243 km/hour |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1010 kg | 1005 kg |
| Vehicle Length | 4360 mm | 3790 mm |
| Vehicle Width | 1620 mm | 1710 mm |
| Vehicle Height | 1390 mm | 1120 mm |
| Wheelbase Size | 2510 mm | 2400 mm |
