1975 BMW 315 vs. 2004 Mazda 6
To start off, 2004 Mazda 6 is newer by 29 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 1,998 cc (4 cylinders), 2004 Mazda 6 is equipped with a bigger engine. In terms of performance, 2004 Mazda 6 (139 HP @ 6000 RPM) has 64 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 2004 Mazda 6 should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 2004 Mazda 6 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.
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, 2004 Mazda 6, 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, 2004 Mazda 6 (181 Nm @ 4500 RPM) has 71 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 2004 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 315.
Compare all specifications:
| 1975 BMW 315 | 2004 Mazda 6 | |
| Make | BMW | Mazda |
| Model | 315 | 6 |
| Year Released | 1975 | 2004 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 139 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 110 Nm | 181 Nm |
| Torque RPM | 3200 RPM | 4500 RPM |
| Engine Bore Size | 84 mm | 87.6 mm |
| Engine Stroke Size | 71 mm | 83.1 mm |
| Engine Compression Ratio | 9.5:1 | 11.0:1 |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1010 kg | 1375 kg |
| Vehicle Length | 4360 mm | 4690 mm |
| Vehicle Width | 1620 mm | 1790 mm |
| Vehicle Height | 1390 mm | 1440 mm |
| Wheelbase Size | 2510 mm | 2680 mm |
