2006 BMW 645 vs. 2006 Fiat Siena
To start off, both 2006 BMW 645 and 2006 Fiat Siena were released in the same year (2006). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 227 more horse power than 2006 Fiat Siena. (101 HP @ 5500 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2006 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2006 Fiat Siena weights approximately 91 kg more than 2006 BMW 645.
Because 2006 BMW 645 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 645. However, in wet, icy, snow, or gravel driving conditions, 2006 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 645 (450 Nm @ 3600 RPM) has 310 more torque (in Nm) than 2006 Fiat Siena. (140 Nm @ 4000 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2006 Fiat Siena.
Compare all specifications:
2006 BMW 645 | 2006 Fiat Siena | |
Make | BMW | Fiat |
Model | 645 | Siena |
Year Released | 2006 | 2006 |
Body Type | Coupe | Sedan |
Engine Position | Front | Front |
Engine Size | 4398 cc | 1581 cc |
Engine Cylinders | 8 cylinders | 4 cylinders |
Engine Type | V | in-line |
Valves per Cylinder | 4 valves | 2 valves |
Horse Power | 328 HP | 101 HP |
Engine RPM | 6100 RPM | 5500 RPM |
Torque | 450 Nm | 140 Nm |
Torque RPM | 3600 RPM | 4000 RPM |
Engine Bore Size | 92 mm | 86.4 mm |
Engine Stroke Size | 82.7 mm | 67.4 mm |
Engine Compression Ratio | 10.0:1 | 9.5:1 |
Top Speed | 250 km/hour | 184 km/hour |
Acceleration 0-100mph | 5.6 seconds | 11.1 seconds |
Drive Type | Rear | Front |
Transmission Type | Manual | Manual |
Number of Seats | 4 seats | 5 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Weight | 1692 kg | 1783 kg |
Vehicle Length | 4830 mm | 3830 mm |
Vehicle Width | 1860 mm | 1640 mm |
Vehicle Height | 1380 mm | 1440 mm |
Wheelbase Size | 2790 mm | 2380 mm |
Fuel Consumption Overall | 11.8 L/100km | 8 L/100km |
Fuel Tank Capacity | 70 L | 54 L |