2008 Cadillac STS vs. 2011 Mercedes-Benz S
To start off, 2011 Mercedes-Benz S is newer by 3 year(s). Which means there will be less support and parts availability for 2008 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2008 Cadillac STS would be higher. At 5,500 cc (8 cylinders), 2011 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2011 Mercedes-Benz S (382 HP @ 6000 RPM) has 61 more horse power than 2008 Cadillac STS. (321 HP @ 6400 RPM) In normal driving conditions, 2011 Mercedes-Benz S should accelerate faster than 2008 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2011 Mercedes-Benz S weights approximately 279 kg more than 2008 Cadillac STS. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 Mercedes-Benz S is all wheel drive (AWD), it will have significant more traction and grip than 2008 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2011 Mercedes-Benz S will offer significantly more control. 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, 2011 Mercedes-Benz S (530 Nm @ 2800 RPM) has 103 more torque (in Nm) than 2008 Cadillac STS. (427 Nm @ 4400 RPM). This means 2011 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2008 Cadillac STS.
Compare all specifications:
| 2008 Cadillac STS | 2011 Mercedes-Benz S | |
| Make | Cadillac | Mercedes-Benz |
| Model | STS | S |
| Year Released | 2008 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 5500 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 382 HP |
| Engine RPM | 6400 RPM | 6000 RPM |
| Torque | 427 Nm | 530 Nm |
| Torque RPM | 4400 RPM | 2800 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1812 kg | 2091 kg |
| Vehicle Length | 4990 mm | 5245 mm |
| Vehicle Width | 1850 mm | 1872 mm |
| Vehicle Height | 1470 mm | 1473 mm |
| Wheelbase Size | 2960 mm | 3165 mm |
| Fuel Consumption | 9.1 L/100km | 11.2 L/100km |
| Fuel Consumption City | 13.8 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 66 L | 90 L |
