2009 BMW Z4 vs. 2008 Mercedes-Benz S
To start off, 2009 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2008 Mercedes-Benz S would be higher. At 5,513 cc, 2008 Mercedes-Benz S is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz S weights approximately 835 kg more than 2009 BMW Z4.
Because 2008 Mercedes-Benz S is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2008 Mercedes-Benz S 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, 2008 Mercedes-Benz S (830 Nm @ 1900 RPM) has 600 more torque (in Nm) than 2009 BMW Z4. (230 Nm @ 3500 RPM). This means 2008 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW Z4. 2008 Mercedes-Benz S has automatic transmission and 2009 BMW Z4 has manual transmission. 2009 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Mercedes-Benz S will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 BMW Z4 | 2008 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | Z4 | S |
| Year Released | 2009 | 2008 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 5513 cc |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 176 HP | 0 HP |
| Torque | 230 Nm | 830 Nm |
| Torque RPM | 3500 RPM | 1900 RPM |
| Engine Bore Size | 82 mm | 82 mm |
| Engine Stroke Size | 78.8 mm | 87 mm |
| Engine Compression Ratio | 11.0:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 229 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.5 seconds | 4.6 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1345 kg | 2180 kg |
| Vehicle Length | 4100 mm | 5210 mm |
| Vehicle Width | 1790 mm | 1480 mm |
| Vehicle Height | 1310 mm | 1880 mm |
| Wheelbase Size | 2500 mm | 3170 mm |
| Fuel Consumption Overall | 8.2 L/100km | 14.3 L/100km |
| Fuel Tank Capacity | 55 L | 90 L |
