2006 BMW Z4 vs. 2007 GMC Sierra
To start off, 2007 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW Z4. In addition, the cost of maintenance, including insurance, on 2006 BMW Z4 would be higher. At 5,997 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (353 HP @ 5400 RPM) has 164 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM) In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 947 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 2007 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, 2007 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, 2007 GMC Sierra (506 Nm @ 4400 RPM) has 261 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 2007 GMC Sierra has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2007 GMC Sierra | |
| Make | BMW | GMC |
| Model | Z4 | Sierra |
| Year Released | 2006 | 2007 |
| Body Type | Convertible | Pickup |
| Engine Position | Front | Front |
| Engine Size | 2492 cc | 5997 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 189 HP | 353 HP |
| Engine RPM | 6000 RPM | 5400 RPM |
| Torque | 245 Nm | 506 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Engine Bore Size | 84 mm | 102 mm |
| Engine Stroke Size | 75 mm | 92 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 3 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1335 kg | 2282 kg |
| Vehicle Length | 4100 mm | 5710 mm |
| Vehicle Width | 1790 mm | 2040 mm |
| Vehicle Height | 1310 mm | 1950 mm |
| Wheelbase Size | 2500 mm | 3380 mm |
| Fuel Consumption Overall | 9 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 55 L | 129 L |
