2007 BMW 530 vs. 2003 Fiat Siena
To start off, 2007 BMW 530 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Fiat Siena. In addition, the cost of maintenance, including insurance, on 2003 Fiat Siena would be higher. At 2,991 cc (6 cylinders), 2007 BMW 530 is equipped with a bigger engine. In terms of performance, 2007 BMW 530 (215 HP @ 4000 RPM) has 156 more horse power than 2003 Fiat Siena. (59 HP @ 5200 RPM). In normal driving conditions, 2007 BMW 530 should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 530 weights approximately 630 kg more than 2003 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW 530 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 2007 BMW 530. However, in wet, icy, snow, or gravel driving conditions, 2003 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, 2007 BMW 530 (500 Nm @ 2000 RPM) has 397 more torque (in Nm) than 2003 Fiat Siena. (103 Nm @ 2500 RPM). This means 2007 BMW 530 will have an easier job in driving up hills or pulling heavy equipment than 2003 Fiat Siena.
Compare all specifications:
| 2007 BMW 530 | 2003 Fiat Siena | |
| Make | BMW | Fiat |
| Model | 530 | Siena |
| Year Released | 2007 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2991 cc | 1301 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 215 HP | 59 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 500 Nm | 103 Nm |
| Torque RPM | 2000 RPM | 2500 RPM |
| Engine Bore Size | 84 mm | 70.8 mm |
| Engine Stroke Size | 90 mm | 78.9 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1670 kg | 1040 kg |
| Vehicle Length | 4850 mm | 4110 mm |
| Vehicle Width | 1850 mm | 1630 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2890 mm | 2380 mm |
