2007 Fiat Siena vs. 2013 BMW M5
To start off, 2013 BMW M5 is newer by 6 year(s). Which means there will be less support and parts availability for 2007 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2007 Fiat Siena would be higher. At 4,395 cc (10 cylinders), 2013 BMW M5 is equipped with a bigger engine. In terms of performance, 2013 BMW M5 (493 HP @ 7750 RPM) has 393 more horse power than 2007 Fiat Siena. (100 HP @ 5500 RPM) In normal driving conditions, 2013 BMW M5 should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW M5 weights approximately 750 kg more than 2007 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 BMW M5 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 2013 BMW M5. 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, 2013 BMW M5 (519 Nm @ 6100 RPM) has 379 more torque (in Nm) than 2007 Fiat Siena. (140 Nm @ 4000 RPM). This means 2013 BMW M5 will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena.
Compare all specifications:
| 2007 Fiat Siena | 2013 BMW M5 | |
| Make | Fiat | BMW |
| Model | Siena | M5 |
| Year Released | 2007 | 2013 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1581 cc | 4395 cc |
| Engine Cylinders | 4 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 100 HP | 493 HP |
| Engine RPM | 5500 RPM | 7750 RPM |
| Torque | 140 Nm | 519 Nm |
| Torque RPM | 4000 RPM | 6100 RPM |
| Engine Compression Ratio | 9.5:1 | 10.0 :1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1070 kg | 1820 kg |
| Vehicle Width | 1640 mm | 1846 mm |
| Wheelbase Size | 2380 mm | 2889 mm |
| Fuel Tank Capacity | 54 L | 70 L |
