1975 BMW 315 vs. 2007 Fiat Siena
To start off, 2007 Fiat Siena 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 1,581 cc (4 cylinders), 2007 Fiat Siena is equipped with a bigger engine. In terms of performance, 2007 Fiat Siena (100 HP @ 5500 RPM) has 25 more horse power than 1975 BMW 315. (75 HP @ 5800 RPM) In normal driving conditions, 2007 Fiat Siena should accelerate faster than 1975 BMW 315. With that said, vehicle weight also plays an important factor in acceleration. 2007 Fiat Siena weights approximately 60 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 Fiat Siena, 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 Fiat Siena (140 Nm @ 4000 RPM) has 30 more torque (in Nm) than 1975 BMW 315. (110 Nm @ 3200 RPM). This means 2007 Fiat Siena will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 315.
Compare all specifications:
| 1975 BMW 315 | 2007 Fiat Siena | |
| Make | BMW | Fiat |
| Model | 315 | Siena |
| Year Released | 1975 | 2007 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 1581 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 75 HP | 100 HP |
| Engine RPM | 5800 RPM | 5500 RPM |
| Torque | 110 Nm | 140 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Compression Ratio | 9.5:1 | 9.5:1 |
| Top Speed | 154 km/hour | 179 km/hour |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1010 kg | 1070 kg |
| Vehicle Width | 1620 mm | 1640 mm |
| Wheelbase Size | 2510 mm | 2380 mm |
