1975 BMW 315 vs. 2008 Opel Astra
To start off, 2008 Opel Astra is newer by 33 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, 2008 Opel Astra (89 HP @ 4000 RPM) has 14 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 2008 Opel Astra should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Astra weights approximately 322 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.
Because 1975 BMW 315 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1975 BMW 315. However, in wet, icy, snow, or gravel driving conditions, 2008 Opel Astra, being front wheel drive (FWD), will offer much better control with better grip. 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, 2008 Opel Astra (200 Nm @ 1750 RPM) has 90 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 2008 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 315.
Compare all specifications:
| 1975 BMW 315 | 2008 Opel Astra | |
| Make | BMW | Opel |
| Model | 315 | Astra |
| Year Released | 1975 | 2008 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 1248 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 89 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 110 Nm | 200 Nm |
| Torque RPM | 3200 RPM | 1750 RPM |
| Engine Bore Size | 84 mm | 69.6 mm |
| Engine Stroke Size | 71 mm | 82 mm |
| Engine Compression Ratio | 9.5:1 | 18.0:1 |
| Top Speed | 154 km/hour | 174 km/hour |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1010 kg | 1332 kg |
| Vehicle Length | 4360 mm | 4300 mm |
| Vehicle Width | 1620 mm | 1760 mm |
| Vehicle Height | 1390 mm | 1440 mm |
| Wheelbase Size | 2510 mm | 2620 mm |
