2003 BMW 325 vs. 2006 BMW X5
To start off, 2006 BMW X5 is newer by 3 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 2,981 cc (6 cylinders), 2006 BMW X5 is equipped with a bigger engine. In terms of performance, 2006 BMW X5 (225 HP @ 5900 RPM) has 33 more horse power than 2003 BMW 325. (192 HP @ 6000 RPM) In normal driving conditions, 2006 BMW X5 should accelerate faster than 2003 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 355 kg more than 2003 BMW 325. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2006 BMW X5 (290 Nm @ 3500 RPM) has 45 more torque (in Nm) than 2003 BMW 325. (245 Nm @ 3500 RPM). This means 2006 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 325.
Compare all specifications:
| 2003 BMW 325 | 2006 BMW X5 | |
| Make | BMW | BMW |
| Model | 325 | X5 |
| Year Released | 2003 | 2006 |
| Body Type | Hatchback | SUV |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2981 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 192 HP | 225 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 245 Nm | 290 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.1 mm | 84 mm |
| Engine Stroke Size | 75 mm | 89.6 mm |
| Engine Compression Ratio | 10.5:1 | 10.2:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 5 doors |
| Vehicle Weight | 1480 kg | 1835 kg |
| Vehicle Length | 4270 mm | 4670 mm |
| Vehicle Width | 1760 mm | 1880 mm |
| Vehicle Height | 1410 mm | 1770 mm |
| Wheelbase Size | 2730 mm | 2830 mm |
| Fuel Consumption | 7 L/100km | 11.2 L/100km |
| Fuel Consumption City | 12.3 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 8.9 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 63 L | 92 L |
