2008 Cadillac STS vs. 2006 Mercedes-Benz SL
To start off, 2008 Cadillac STS is newer by 2 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 4,565 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (321 HP @ 6400 RPM) has 53 more horse power than 2006 Mercedes-Benz SL. (268 HP @ 6000 RPM). In normal driving conditions, 2008 Cadillac STS should accelerate faster than 2006 Mercedes-Benz SL. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercedes-Benz SL weights approximately 13 kg more than 2008 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, 2008 Cadillac STS (427 Nm @ 4400 RPM) has 77 more torque (in Nm) than 2006 Mercedes-Benz SL. (350 Nm @ 2400 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 Mercedes-Benz SL.
Compare all specifications:
| 2008 Cadillac STS | 2006 Mercedes-Benz SL | |
| Make | Cadillac | Mercedes-Benz |
| Model | STS | SL |
| Year Released | 2008 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 3498 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 268 HP |
| Engine RPM | 6400 RPM | 6000 RPM |
| Torque | 427 Nm | 350 Nm |
| Torque RPM | 4400 RPM | 2400 RPM |
| Engine Bore Size | 93 mm | 92.9 mm |
| Engine Stroke Size | 84 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.5 seconds | 6.6 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1812 kg | 1825 kg |
| Vehicle Length | 4990 mm | 4540 mm |
| Vehicle Width | 1850 mm | 1830 mm |
| Vehicle Height | 1470 mm | 1320 mm |
| Wheelbase Size | 2960 mm | 2570 mm |
| Fuel Consumption | 9.1 L/100km | 9.6 L/100km |
| Fuel Consumption Overall | 14.5 L/100km | 10.5 L/100km |
| Fuel Tank Capacity | 66 L | 80 L |
