2007 Fiat Siena vs. 2013 BMW 5 Series
To start off, 2013 BMW 5 Series 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 (8 cylinders), 2013 BMW 5 Series is equipped with a bigger engine. In terms of performance, 2013 BMW 5 Series (439 HP @ 5500 RPM) has 367 more horse power than 2007 Fiat Siena. (72 HP @ 6000 RPM) In normal driving conditions, 2013 BMW 5 Series should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 5 Series weights approximately 980 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 5 Series is all wheel drive (AWD), it will have significant more traction and grip than 2007 Fiat Siena. In wet, icy, snow, or gravel driving conditions, 2013 BMW 5 Series will offer significantly more control. 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 5 Series (651 Nm @ 4500 RPM) has 549 more torque (in Nm) than 2007 Fiat Siena. (102 Nm @ 3250 RPM). This means 2013 BMW 5 Series will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena. 2013 BMW 5 Series has automatic transmission and 2007 Fiat Siena has manual transmission. 2007 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 BMW 5 Series will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Fiat Siena | 2013 BMW 5 Series | |
| Make | Fiat | BMW |
| Model | Siena | 5 Series |
| Year Released | 2007 | 2013 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1242 cc | 4395 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 72 HP | 439 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 102 Nm | 651 Nm |
| Torque RPM | 3250 RPM | 4500 RPM |
| Engine Bore Size | 70.9 mm | 89 mm |
| Engine Stroke Size | 78.9 mm | 88 mm |
| Engine Compression Ratio | 9.1:1 | 10.0 :1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 13.5 seconds | 5.9 seconds |
| Drive Type | Front | AWD |
| Transmission Type | Manual | 8-speed automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1070 kg | 2050 kg |
| Vehicle Length | 3830 mm | 4905 mm |
| Vehicle Width | 1640 mm | 2094 mm |
| Vehicle Height | 1440 mm | 1464 mm |
| Wheelbase Size | 2380 mm | 2968 mm |
| Fuel Tank Capacity | 54 L | 70 L |
