1975 BMW 315 vs. 2001 BMW M
To start off, 2001 BMW M is newer by 26 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 3,300 cc (6 cylinders), 2001 BMW M is equipped with a bigger engine. In terms of performance, 2001 BMW M (325 HP @ 7400 RPM) has 250 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 2001 BMW M should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 2001 BMW M weights approximately 365 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, 2001 BMW M (350 Nm @ 4900 RPM) has 240 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 2001 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 | 2001 BMW M | |
| Make | BMW | BMW |
| Model | 315 | M |
| Year Released | 1975 | 2001 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 3300 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 325 HP |
| Engine RPM | 5800 RPM | 7400 RPM |
| Torque | 110 Nm | 350 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 | 1375 kg |
| Vehicle Length | 4360 mm | 4030 mm |
| Vehicle Width | 1620 mm | 1750 mm |
| Vehicle Height | 1390 mm | 1290 mm |
| Wheelbase Size | 2510 mm | 2580 mm |
