2003 BMW 645 vs. 2004 GMC Sierra
To start off, 2004 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2003 BMW 645. In addition, the cost of maintenance, including insurance, on 2003 BMW 645 would be higher. At 5,965 cc (8 cylinders), 2004 GMC Sierra is equipped with a bigger engine. In terms of performance, 2004 GMC Sierra (340 HP @ 5200 RPM) has 30 more horse power than 2003 BMW 645. (310 HP @ 6000 RPM) In normal driving conditions, 2004 GMC Sierra should accelerate faster than 2003 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 647 kg more than 2003 BMW 645. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW 645. In wet, icy, snow, or gravel driving conditions, 2004 GMC Sierra 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, 2004 GMC Sierra (516 Nm @ 4000 RPM) has 66 more torque (in Nm) than 2003 BMW 645. (450 Nm @ 3600 RPM). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 645.
Compare all specifications:
2003 BMW 645 | 2004 GMC Sierra | |
Make | BMW | GMC |
Model | 645 | Sierra |
Year Released | 2003 | 2004 |
Body Type | Coupe | Pickup |
Engine Position | Front | Front |
Engine Size | 4398 cc | 5965 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 2 valves |
Horse Power | 310 HP | 340 HP |
Engine RPM | 6000 RPM | 5200 RPM |
Torque | 450 Nm | 516 Nm |
Torque RPM | 3600 RPM | 4000 RPM |
Engine Bore Size | 92 mm | 102 mm |
Engine Stroke Size | 82.7 mm | 92 mm |
Drive Type | Rear | 4WD |
Transmission Type | Automatic | Automatic |
Vehicle Weight | 1698 kg | 2345 kg |
Vehicle Length | 4830 mm | 5740 mm |
Vehicle Width | 1860 mm | 2000 mm |
Vehicle Height | 1380 mm | 1910 mm |
Wheelbase Size | 2790 mm | 3650 mm |