2009 BMW Z4 vs. 2007 Mercedes-Benz SLK
To start off, 2009 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz SLK would be higher. At 5,439 cc (8 cylinders), 2007 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz SLK (355 HP @ 6000 RPM) has 140 more horse power than 2009 BMW Z4. (215 HP @ 6500 RPM) In normal driving conditions, 2007 Mercedes-Benz SLK should accelerate faster than 2009 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW Z4 weights approximately 50 kg more than 2007 Mercedes-Benz SLK.
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, 2007 Mercedes-Benz SLK (511 Nm @ 4000 RPM) has 261 more torque (in Nm) than 2009 BMW Z4. (250 Nm @ 2000 RPM). This means 2007 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW Z4.
Compare all specifications:
| 2009 BMW Z4 | 2007 Mercedes-Benz SLK | |
| Make | BMW | Mercedes-Benz |
| Model | Z4 | SLK |
| Year Released | 2009 | 2007 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 5439 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 215 HP | 355 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 250 Nm | 511 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Bore Size | 82 mm | 98 mm |
| Engine Stroke Size | 78.8 mm | 90.5 mm |
| Fuel Type | Gasoline | Diesel |
| Acceleration 0-100mph | 7.5 seconds | 4.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1290 kg | 1240 kg |
| Vehicle Length | 4100 mm | 4090 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1310 mm | 1280 mm |
| Wheelbase Size | 2500 mm | 2440 mm |
| Fuel Consumption Overall | 9.7 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
