1975 BMW 315 vs. 2007 Opel Astra
To start off, 2007 Opel Astra 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 1,598 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (104 HP @ 6000 RPM) has 29 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 505 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, 2007 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, 2007 Opel Astra (151 Nm @ 3900 RPM) has 41 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 2007 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 | 2007 Opel Astra | |
| Make | BMW | Opel |
| Model | 315 | Astra |
| Year Released | 1975 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 1598 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 104 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 110 Nm | 151 Nm |
| Torque RPM | 3200 RPM | 3900 RPM |
| Engine Bore Size | 84 mm | 79 mm |
| Engine Stroke Size | 71 mm | 81.5 mm |
| Top Speed | 154 km/hour | 186 km/hour |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1010 kg | 1515 kg |
| Vehicle Length | 4360 mm | 4480 mm |
| Vehicle Width | 1620 mm | 2030 mm |
| Vehicle Height | 1390 mm | 1840 mm |
| Wheelbase Size | 2510 mm | 2620 mm |
