2008 BMW 645 vs. 2004 Fiat Siena
To start off, 2008 BMW 645 is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2004 Fiat Siena would be higher. At 4,398 cc (8 cylinders), 2008 BMW 645 is equipped with a bigger engine. In terms of performance, 2008 BMW 645 (328 HP @ 6100 RPM) has 258 more horse power than 2004 Fiat Siena. (70 HP @ 5750 RPM). In normal driving conditions, 2008 BMW 645 should accelerate faster than 2004 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 645 weights approximately 795 kg more than 2004 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 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 2008 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 2008 BMW 645 (450 Nm @ 3600 RPM) has 355 more torque (in Nm) than 2004 Fiat Siena. (95 Nm @ 4000 RPM). This means 2008 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2004 Fiat Siena.
Compare all specifications:
2008 BMW 645 | 2004 Fiat Siena | |
Make | BMW | Fiat |
Model | 645 | Siena |
Year Released | 2008 | 2004 |
Body Type | Convertible | Sedan |
Engine Position | Front | Front |
Engine Size | 4398 cc | 999 cc |
Engine Cylinders | 8 cylinders | 4 cylinders |
Engine Type | V | in-line |
Horse Power | 328 HP | 70 HP |
Engine RPM | 6100 RPM | 5750 RPM |
Torque | 450 Nm | 95 Nm |
Torque RPM | 3600 RPM | 4000 RPM |
Fuel Type | Gasoline - Premium | Gasoline |
Drive Type | Rear | Front |
Transmission Type | Manual | Manual |
Number of Seats | 4 seats | 5 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Weight | 1815 kg | 1020 kg |
Vehicle Length | 4830 mm | 4110 mm |
Vehicle Width | 1860 mm | 1630 mm |
Vehicle Height | 1380 mm | 1470 mm |
Wheelbase Size | 2790 mm | 2380 mm |