2009 Cadillac STS vs. 2006 Mercedes-Benz SL
To start off, 2009 Cadillac STS is newer by 3 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 5,982 cc (12 cylinders), 2006 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2006 Mercedes-Benz SL (605 HP @ 5500 RPM) has 303 more horse power than 2009 Cadillac STS. (302 HP @ 6300 RPM) In normal driving conditions, 2006 Mercedes-Benz SL should accelerate faster than 2009 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 35 kg more than 2006 Mercedes-Benz SL.
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 (1,001 Nm @ 2000 RPM) has 632 more torque (in Nm) than 2009 Cadillac STS. (369 Nm @ 5200 RPM). This means 2006 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS.
Compare all specifications:
| 2009 Cadillac STS | 2006 Mercedes-Benz SL | |
| Make | Cadillac | Mercedes-Benz |
| Model | STS | SL |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3599 cc | 5982 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | V | V |
| Horse Power | 302 HP | 605 HP |
| Engine RPM | 6300 RPM | 5500 RPM |
| Torque | 369 Nm | 1001 Nm |
| Torque RPM | 5200 RPM | 2000 RPM |
| Engine Compression Ratio | 11.3:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1635 kg | 1600 kg |
| Vehicle Length | 5000 mm | 4540 mm |
| Vehicle Width | 1850 mm | 1820 mm |
| Vehicle Height | 1470 mm | 1300 mm |
| Wheelbase Size | 2960 mm | 2570 mm |
| Fuel Consumption | 9.1 L/100km | 12.4 L/100km |
| Fuel Consumption City | 13.8 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 64 L | 80 L |
