2003 BMW 325 vs. 2007 Fiat Siena
To start off, 2007 Fiat Siena is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW 325. In addition, the cost of maintenance, including insurance, on 2003 BMW 325 would be higher. At 2,494 cc (6 cylinders), 2003 BMW 325 is equipped with a bigger engine. In terms of performance, 2003 BMW 325 (192 HP @ 6000 RPM) has 92 more horse power than 2007 Fiat Siena. (100 HP @ 5500 RPM). In normal driving conditions, 2003 BMW 325 should accelerate faster than 2007 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 325 weights approximately 410 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.
Let's talk about torque, 2003 BMW 325 (245 Nm @ 3500 RPM) has 105 more torque (in Nm) than 2007 Fiat Siena. (140 Nm @ 4000 RPM). This means 2003 BMW 325 will have an easier job in driving up hills or pulling heavy equipment than 2007 Fiat Siena.
Compare all specifications:
| 2003 BMW 325 | 2007 Fiat Siena | |
| Make | BMW | Fiat |
| Model | 325 | Siena |
| Year Released | 2003 | 2007 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1581 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 192 HP | 100 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 245 Nm | 140 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Compression Ratio | 10.5:1 | 9.5:1 |
| Acceleration 0-100mph | 7.1 seconds | 11.5 seconds |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1480 kg | 1070 kg |
| Vehicle Width | 1760 mm | 1640 mm |
| Wheelbase Size | 2730 mm | 2380 mm |
| Fuel Consumption Overall | 8.9 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 63 L | 54 L |
