2007 BMW Z4 vs. 2009 Mercedes-Benz GL
To start off, 2009 Mercedes-Benz GL is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW Z4. In addition, the cost of maintenance, including insurance, on 2007 BMW Z4 would be higher. At 4,662 cc (8 cylinders), 2009 Mercedes-Benz GL is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz GL (335 HP @ 6000 RPM) has 167 more horse power than 2007 BMW Z4. (168 HP @ 6250 RPM) In normal driving conditions, 2009 Mercedes-Benz GL should accelerate faster than 2007 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Z4 weights approximately 100 kg more than 2009 Mercedes-Benz GL.
Because 2009 Mercedes-Benz GL is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2009 Mercedes-Benz GL 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, 2009 Mercedes-Benz GL (460 Nm @ 2700 RPM) has 250 more torque (in Nm) than 2007 BMW Z4. (210 Nm @ 3500 RPM). This means 2009 Mercedes-Benz GL will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 2009 Mercedes-Benz GL has automatic transmission and 2007 BMW Z4 has manual transmission. 2007 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Mercedes-Benz GL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW Z4 | 2009 Mercedes-Benz GL | |
| Make | BMW | Mercedes-Benz |
| Model | Z4 | GL |
| Year Released | 2007 | 2009 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 4662 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 335 HP |
| Engine RPM | 6250 RPM | 6000 RPM |
| Torque | 210 Nm | 460 Nm |
| Torque RPM | 3500 RPM | 2700 RPM |
| Engine Bore Size | 80 mm | 92.9 mm |
| Engine Stroke Size | 72 mm | 86 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 225 km/hour | 235 km/hour |
| Acceleration 0-100mph | 7.7 seconds | 7.6 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1325 kg | 1225 kg |
| Vehicle Length | 4100 mm | 5100 mm |
| Vehicle Width | 1790 mm | 1930 mm |
| Vehicle Height | 1310 mm | 1850 mm |
| Wheelbase Size | 2500 mm | 3080 mm |
| Fuel Consumption Overall | 8.9 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 55 L | 100 L |
