2005 BMW 325 vs. 2011 Fiat Siena
To start off, 2011 Fiat Siena is newer by 6 year(s). Which means there will be less support and parts availability for 2005 BMW 325. In addition, the cost of maintenance, including insurance, on 2005 BMW 325 would be higher. At 2,497 cc (6 cylinders), 2005 BMW 325 is equipped with a bigger engine. In terms of performance, 2005 BMW 325 (215 HP @ 6500 RPM) has 109 more horse power than 2011 Fiat Siena. (106 HP @ 5500 RPM). In normal driving conditions, 2005 BMW 325 should accelerate faster than 2011 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 325 weights approximately 399 kg more than 2011 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, 2005 BMW 325 (250 Nm @ 2750 RPM) has 110 more torque (in Nm) than 2011 Fiat Siena. (140 Nm @ 4000 RPM). This means 2005 BMW 325 will have an easier job in driving up hills or pulling heavy equipment than 2011 Fiat Siena.
Compare all specifications:
| 2005 BMW 325 | 2011 Fiat Siena | |
| Make | BMW | Fiat |
| Model | 325 | Siena |
| Year Released | 2005 | 2011 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 1581 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 106 HP |
| Engine RPM | 6500 RPM | 5500 RPM |
| Torque | 250 Nm | 140 Nm |
| Torque RPM | 2750 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 86.5 mm |
| Engine Stroke Size | 78.8 mm | 67.4 mm |
| Engine Compression Ratio | 11.0:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1494 kg | 1095 kg |
| Vehicle Length | 4480 mm | 3550 mm |
| Vehicle Width | 1820 mm | 1640 mm |
| Vehicle Height | 1440 mm | 1490 mm |
| Wheelbase Size | 2730 mm | 2370 mm |
| Fuel Tank Capacity | 63 L | 47 L |
