2007 BMW Z4 vs. 2006 Mercedes-Benz SL
To start off, 2007 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2006 Mercedes-Benz SL would be higher. At 5,506 cc (12 cylinders), 2006 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2006 Mercedes-Benz SL (493 HP @ 5000 RPM) has 278 more horse power than 2007 BMW Z4. (215 HP @ 6500 RPM) In normal driving conditions, 2006 Mercedes-Benz SL should accelerate faster than 2007 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercedes-Benz SL weights approximately 333 kg more than 2007 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2006 Mercedes-Benz SL (800 Nm @ 1800 RPM) has 550 more torque (in Nm) than 2007 BMW Z4. (250 Nm @ 2750 RPM). This means 2006 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4. 2006 Mercedes-Benz SL 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. 2006 Mercedes-Benz SL will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW Z4 | 2006 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | Z4 | SL |
| Year Released | 2007 | 2006 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 5506 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 215 HP | 493 HP |
| Engine RPM | 6500 RPM | 5000 RPM |
| Torque | 250 Nm | 800 Nm |
| Torque RPM | 2750 RPM | 1800 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 | Gasoline - Premium |
| Acceleration 0-100mph | 6.5 seconds | 5.1 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1362 kg | 1695 kg |
| Vehicle Length | 4100 mm | 4540 mm |
| Vehicle Width | 1310 mm | 1820 mm |
| Vehicle Height | 1790 mm | 1300 mm |
| Wheelbase Size | 2500 mm | 2570 mm |
| Fuel Consumption Overall | 8.4 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 55 L | 80 L |
