2006 Cadillac STS vs. 1990 Mercedes-Benz S
To start off, 2006 Cadillac STS is newer by 16 year(s). Which means there will be less support and parts availability for 1990 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 1990 Mercedes-Benz S would be higher. At 5,547 cc (8 cylinders), 1990 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 1990 Mercedes-Benz S (297 HP @ 5000 RPM) has 44 more horse power than 2006 Cadillac STS. (253 HP @ 6500 RPM) In normal driving conditions, 1990 Mercedes-Benz S should accelerate faster than 2006 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 1990 Mercedes-Benz S weights approximately 28 kg more than 2006 Cadillac STS. 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, 1990 Mercedes-Benz S (463 Nm @ 3750 RPM) has 121 more torque (in Nm) than 2006 Cadillac STS. (342 Nm @ 3200 RPM). This means 1990 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS.
Compare all specifications:
| 2006 Cadillac STS | 1990 Mercedes-Benz S | |
| Make | Cadillac | Mercedes-Benz |
| Model | STS | S |
| Year Released | 2006 | 1990 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 5547 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 253 HP | 297 HP |
| Engine RPM | 6500 RPM | 5000 RPM |
| Torque | 342 Nm | 463 Nm |
| Torque RPM | 3200 RPM | 3750 RPM |
| Engine Bore Size | 94 mm | 96.5 mm |
| Engine Stroke Size | 85.6 mm | 94.8 mm |
| Engine Compression Ratio | 10.2:1 | 10.0:1 |
| 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 | 1782 kg | 1810 kg |
| Vehicle Length | 4990 mm | 5030 mm |
| Vehicle Width | 1850 mm | 1830 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2960 mm | 2950 mm |
