1975 BMW 315 vs. 1978 Porsche 924
To start off, 1978 Porsche 924 is newer by 3 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 1,984 cc (4 cylinders), 1978 Porsche 924 is equipped with a bigger engine. In terms of performance, 1978 Porsche 924 (170 HP @ 5500 RPM) has 95 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 1978 Porsche 924 should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 1978 Porsche 924 weights approximately 170 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, 1978 Porsche 924 (245 Nm @ 3500 RPM) has 135 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 1978 Porsche 924 will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 315.
Compare all specifications:
| 1975 BMW 315 | 1978 Porsche 924 | |
| Make | BMW | Porsche |
| Model | 315 | 924 |
| Year Released | 1975 | 1978 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 1984 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 170 HP |
| Engine RPM | 5800 RPM | 5500 RPM |
| Torque | 110 Nm | 245 Nm |
| Torque RPM | 3200 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 86.6 mm |
| Engine Stroke Size | 71 mm | 84.4 mm |
| Engine Compression Ratio | 9.5:1 | 7.5:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1010 kg | 1180 kg |
| Vehicle Length | 4360 mm | 4220 mm |
| Vehicle Width | 1620 mm | 1660 mm |
| Vehicle Height | 1390 mm | 1270 mm |
| Wheelbase Size | 2510 mm | 2410 mm |
