2010 Fiat Siena vs. 2006 BMW 630
To start off, 2010 Fiat Siena is newer by 4 year(s). Which means there will be less support and parts availability for 2006 BMW 630. In addition, the cost of maintenance, including insurance, on 2006 BMW 630 would be higher. At 2,996 cc (6 cylinders), 2006 BMW 630 is equipped with a bigger engine. In terms of performance, 2006 BMW 630 (254 HP @ 6600 RPM) has 148 more horse power than 2010 Fiat Siena. (106 HP @ 5500 RPM) In normal driving conditions, 2006 BMW 630 should accelerate faster than 2010 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 630 weights approximately 665 kg more than 2010 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW 630 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 2006 BMW 630. However, in wet, icy, snow, or gravel driving conditions, 2010 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, 2006 BMW 630 (300 Nm @ 2500 RPM) has 160 more torque (in Nm) than 2010 Fiat Siena. (140 Nm @ 4000 RPM). This means 2006 BMW 630 will have an easier job in driving up hills or pulling heavy equipment than 2010 Fiat Siena. 2006 BMW 630 has automatic transmission and 2010 Fiat Siena has manual transmission. 2010 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 BMW 630 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2010 Fiat Siena | 2006 BMW 630 | |
| Make | Fiat | BMW |
| Model | Siena | 630 |
| Year Released | 2010 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1581 cc | 2996 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 106 HP | 254 HP |
| Engine RPM | 5500 RPM | 6600 RPM |
| Torque | 140 Nm | 300 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Engine Bore Size | 86.5 mm | 85 mm |
| Engine Stroke Size | 67.4 mm | 88 mm |
| Engine Compression Ratio | 10.2:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 10.5 seconds | 7.2 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1095 kg | 1760 kg |
| Vehicle Length | 3550 mm | 4830 mm |
| Vehicle Width | 1640 mm | 1860 mm |
| Vehicle Height | 1490 mm | 1380 mm |
| Wheelbase Size | 2370 mm | 2790 mm |
| Fuel Consumption Overall | 8.2 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 47 L | 70 L |
