1977 BMW 728 vs. 2008 Fiat Siena
To start off, 2008 Fiat Siena is newer by 31 year(s). Which means there will be less support and parts availability for 1977 BMW 728. In addition, the cost of maintenance, including insurance, on 1977 BMW 728 would be higher. At 2,788 cc (6 cylinders), 1977 BMW 728 is equipped with a bigger engine. In terms of performance, 1977 BMW 728 (170 HP @ 6000 RPM) has 64 more horse power than 2008 Fiat Siena. (106 HP @ 5500 RPM). In normal driving conditions, 1977 BMW 728 should accelerate faster than 2008 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 1977 BMW 728 weights approximately 441 kg more than 2008 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1977 BMW 728 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 1977 BMW 728. However, in wet, icy, snow, or gravel driving conditions, 2008 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, 1977 BMW 728 (235 Nm @ 3700 RPM) has 95 more torque (in Nm) than 2008 Fiat Siena. (140 Nm @ 4000 RPM). This means 1977 BMW 728 will have an easier job in driving up hills or pulling heavy equipment than 2008 Fiat Siena.
Compare all specifications:
| 1977 BMW 728 | 2008 Fiat Siena | |
| Make | BMW | Fiat |
| Model | 728 | Siena |
| Year Released | 1977 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 1581 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 170 HP | 106 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 235 Nm | 140 Nm |
| Torque RPM | 3700 RPM | 4000 RPM |
| Engine Bore Size | 86 mm | 86.5 mm |
| Engine Stroke Size | 80 mm | 67.4 mm |
| Engine Compression Ratio | 9.0:1 | 10.2:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1536 kg | 1095 kg |
| Vehicle Length | 4870 mm | 3550 mm |
| Vehicle Width | 1810 mm | 1640 mm |
| Vehicle Height | 1440 mm | 1490 mm |
| Wheelbase Size | 2800 mm | 2370 mm |
| Fuel Tank Capacity | 85 L | 47 L |
