2006 BMW Z4 vs. 2005 GMC Sierra
To start off, 2006 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2005 GMC Sierra would be higher. At 4,802 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (285 HP) has 56 more horse power than 2006 BMW Z4. (229 HP) In normal driving conditions, 2005 GMC Sierra should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 687 kg more than 2006 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 GMC Sierra (400 Nm) has 100 more torque (in Nm) than 2006 BMW Z4. (300 Nm). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2006 BMW Z4 | 2005 GMC Sierra | |
| Make | BMW | GMC |
| Model | Z4 | Sierra |
| Year Released | 2006 | 2005 |
| Body Type | Convertible | Pickup |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 4802 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 229 HP | 285 HP |
| Torque | 300 Nm | 400 Nm |
| Engine Bore Size | 84 mm | 96.1 mm |
| Engine Stroke Size | 90 mm | 83 mm |
| Engine Compression Ratio | 10.2:1 | 9.5:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 3 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1630 kg | 2317 kg |
| Vehicle Length | 4570 mm | 5710 mm |
| Vehicle Width | 1790 mm | 2000 mm |
| Vehicle Height | 1680 mm | 1880 mm |
| Wheelbase Size | 2500 mm | 3380 mm |
| Fuel Consumption Overall | 9.1 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 55 L | 129 L |
