2006 BMW Z4 vs. 2004 Mercedes-Benz SL
To start off, 2006 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2004 Mercedes-Benz SL would be higher. At 4,966 cc (8 cylinders), 2004 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2004 Mercedes-Benz SL (302 HP @ 4200 RPM) has 47 more horse power than 2006 BMW Z4. (255 HP @ 6600 RPM) In normal driving conditions, 2004 Mercedes-Benz SL should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Mercedes-Benz SL weights approximately 13 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.
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, 2004 Mercedes-Benz SL (460 Nm) has 162 more torque (in Nm) than 2006 BMW Z4. (298 Nm). This means 2004 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2006 BMW Z4 | 2004 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | Z4 | SL |
| Year Released | 2006 | 2004 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2999 cc | 4966 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 255 HP | 302 HP |
| Engine RPM | 6600 RPM | 4200 RPM |
| Torque | 298 Nm | 460 Nm |
| Engine Compression Ratio | 10.7:1 | 10.0:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1835 kg | 1848 kg |
| Vehicle Length | 4100 mm | 4540 mm |
| Vehicle Width | 1790 mm | 1840 mm |
| Vehicle Height | 1270 mm | 1300 mm |
| Wheelbase Size | 2500 mm | 2570 mm |
| Fuel Consumption | 7.8 L/100km | 10.2 L/100km |
| Fuel Consumption City | 11.8 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 55 L | 80 L |
