2006 BMW X5 vs. 2003 BMW 545
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 545. In addition, the cost of maintenance, including insurance, on 2003 BMW 545 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 545 is equipped with a bigger engine. In terms of performance, 2003 BMW 545 (328 HP @ 6100 RPM) has 13 more horse power than 2006 BMW X5. (315 HP @ 5400 RPM) In normal driving conditions, 2003 BMW 545 should accelerate faster than 2006 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 565 kg more than 2003 BMW 545.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW 545. In wet, icy, snow, or gravel driving conditions, 2006 BMW X5 will offer significantly more control. 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, 2003 BMW 545 (451 Nm @ 3600 RPM) has 12 more torque (in Nm) than 2006 BMW X5. (439 Nm @ 3600 RPM). This means 2003 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X5.
Compare all specifications:
| 2006 BMW X5 | 2003 BMW 545 | |
| Make | BMW | BMW |
| Model | X5 | 545 |
| Year Released | 2006 | 2003 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 4398 cc |
| Horse Power | 315 HP | 328 HP |
| Engine RPM | 5400 RPM | 6100 RPM |
| Torque | 439 Nm | 451 Nm |
| Torque RPM | 3600 RPM | 3600 RPM |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2235 kg | 1670 kg |
| Vehicle Length | 4670 mm | 4850 mm |
| Vehicle Width | 1880 mm | 1850 mm |
| Vehicle Height | 1760 mm | 1470 mm |
| Wheelbase Size | 2830 mm | 2890 mm |
| Fuel Consumption Highway | 10.7 L/100km | 7.7 L/100km |
| Fuel Consumption City | 14.7 L/100km | 15.8 L/100km |
| Fuel Consumption Overall | 13.1 L/100km | 10.6 L/100km |
| Fuel Tank Capacity | 92 L | 70 L |
