2009 Cadillac STS vs. 2007 Mercedes-Benz SLK
To start off, 2009 Cadillac STS 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 3,599 cc (6 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (302 HP @ 6300 RPM) has 33 more horse power than 2007 Mercedes-Benz SLK. (269 HP @ 6000 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2007 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz SLK weights approximately 570 kg more than 2009 Cadillac STS.
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, 2009 Cadillac STS (369 Nm @ 5200 RPM) has 19 more torque (in Nm) than 2007 Mercedes-Benz SLK. (350 Nm @ 2400 RPM). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercedes-Benz SLK. 2009 Cadillac STS has automatic transmission and 2007 Mercedes-Benz SLK has manual transmission. 2007 Mercedes-Benz SLK will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Cadillac STS | 2007 Mercedes-Benz SLK | |
| Make | Cadillac | Mercedes-Benz |
| Model | STS | SLK |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3599 cc | 3498 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 302 HP | 269 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 369 Nm | 350 Nm |
| Torque RPM | 5200 RPM | 2400 RPM |
| Engine Compression Ratio | 11.3:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1635 kg | 2205 kg |
| Vehicle Length | 5000 mm | 4090 mm |
| Vehicle Width | 1850 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1300 mm |
| Wheelbase Size | 2960 mm | 2410 mm |
| Fuel Consumption | 9.1 L/100km | 9.4 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 10.6 L/100km |
| Fuel Tank Capacity | 64 L | 70 L |
