1975 BMW 315 vs. 2007 BMW M
To start off, 2007 BMW M 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 3,245 cc (6 cylinders), 2007 BMW M is equipped with a bigger engine. In terms of performance, 2007 BMW M (330 HP @ 7900 RPM) has 255 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 2007 BMW M should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW M weights approximately 475 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 BMW M (355 Nm @ 4900 RPM) has 245 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 2007 BMW M will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 315.
Compare all specifications:
| 1975 BMW 315 | 2007 BMW M | |
| Make | BMW | BMW |
| Model | 315 | M |
| Year Released | 1975 | 2007 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 3245 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 330 HP |
| Engine RPM | 5800 RPM | 7900 RPM |
| Torque | 110 Nm | 355 Nm |
| Torque RPM | 3200 RPM | 4900 RPM |
| Engine Bore Size | 84 mm | 87 mm |
| Engine Stroke Size | 71 mm | 91 mm |
| Engine Compression Ratio | 9.5:1 | 11.5:1 |
| Top Speed | 154 km/hour | 250 km/hour |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1010 kg | 1485 kg |
| Vehicle Length | 4360 mm | 4120 mm |
| Vehicle Width | 1620 mm | 1790 mm |
| Vehicle Height | 1390 mm | 1310 mm |
| Wheelbase Size | 2510 mm | 2500 mm |
