2007 BMW X3 vs. 2003 GMC Sierra
To start off, 2007 BMW X3 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2003 GMC Sierra would be higher. At 5,967 cc (8 cylinders), 2003 GMC Sierra is equipped with a bigger engine. In terms of performance, 2003 GMC Sierra (321 HP @ 5000 RPM) has 53 more horse power than 2007 BMW X3. (268 HP @ 6600 RPM) In normal driving conditions, 2003 GMC Sierra should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2003 GMC Sierra weights approximately 455 kg more than 2007 BMW X3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 GMC Sierra (370 Nm @ 4000 RPM) has 55 more torque (in Nm) than 2007 BMW X3. (315 Nm @ 2750 RPM). This means 2003 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X3.
Compare all specifications:
| 2007 BMW X3 | 2003 GMC Sierra | |
| Make | BMW | GMC |
| Model | X3 | Sierra |
| Year Released | 2007 | 2003 |
| Body Type | SUV | Pickup |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 5967 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 268 HP | 321 HP |
| Engine RPM | 6600 RPM | 5000 RPM |
| Torque | 315 Nm | 370 Nm |
| Torque RPM | 2750 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1815 kg | 2270 kg |
| Vehicle Length | 4570 mm | 5790 mm |
| Vehicle Width | 1680 mm | 2000 mm |
| Vehicle Height | 1860 mm | 1850 mm |
| Wheelbase Size | 2800 mm | 3650 mm |
| Fuel Consumption Overall | 10.3 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 67 L | 117 L |
