2008 Cadillac STS vs. 2005 Mercedes-Benz S
To start off, 2008 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz S 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 79 more horse power than 2005 Mercedes-Benz S. (242 HP @ 5700 RPM). In normal driving conditions, 2008 Cadillac STS should accelerate faster than 2005 Mercedes-Benz S. With that said, vehicle weight also plays an important factor in acceleration. 2008 Cadillac STS weights approximately 77 kg more than 2005 Mercedes-Benz S. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 2005 Mercedes-Benz S. (350 Nm @ 3000 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercedes-Benz S.
Compare all specifications:
| 2008 Cadillac STS | 2005 Mercedes-Benz S | |
| Make | Cadillac | Mercedes-Benz |
| Model | STS | S |
| Year Released | 2008 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 3724 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 321 HP | 242 HP |
| Engine RPM | 6400 RPM | 5700 RPM |
| Torque | 427 Nm | 350 Nm |
| Torque RPM | 4400 RPM | 3000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1812 kg | 1735 kg |
| Vehicle Length | 4990 mm | 5170 mm |
| Vehicle Width | 1850 mm | 1860 mm |
| Vehicle Height | 1470 mm | 1460 mm |
| Wheelbase Size | 2960 mm | 3090 mm |
| Fuel Tank Capacity | 66 L | 62 L |
