2006 Cadillac STS vs. 2003 Mercedes-Benz Viano
To start off, 2006 Cadillac STS is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Mercedes-Benz Viano. In addition, the cost of maintenance, including insurance, on 2003 Mercedes-Benz Viano would be higher. At 3,563 cc (6 cylinders), 2006 Cadillac STS is equipped with a bigger engine. In terms of performance, 2006 Cadillac STS (253 HP @ 6500 RPM) has 112 more horse power than 2003 Mercedes-Benz Viano. (141 HP @ 3800 RPM). In normal driving conditions, 2006 Cadillac STS should accelerate faster than 2003 Mercedes-Benz Viano. With that said, vehicle weight also plays an important factor in acceleration. 2003 Mercedes-Benz Viano weights approximately 264 kg more than 2006 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, 2003 Mercedes-Benz Viano (344 Nm @ 1800 RPM) has 2 more torque (in Nm) than 2006 Cadillac STS. (342 Nm @ 3200 RPM). This means 2003 Mercedes-Benz Viano will have an easier job in driving up hills or pulling heavy equipment than 2006 Cadillac STS.
Compare all specifications:
| 2006 Cadillac STS | 2003 Mercedes-Benz Viano | |
| Make | Cadillac | Mercedes-Benz |
| Model | STS | Viano |
| Year Released | 2006 | 2003 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 2148 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 253 HP | 141 HP |
| Engine RPM | 6500 RPM | 3800 RPM |
| Torque | 342 Nm | 344 Nm |
| Torque RPM | 3200 RPM | 1800 RPM |
| Engine Bore Size | 94 mm | 88 mm |
| Engine Stroke Size | 85.6 mm | 88.3 mm |
| Engine Compression Ratio | 10.2:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 229 km/hour | 174 km/hour |
| Drive Type | Rear | Rear |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1782 kg | 2046 kg |
| Vehicle Length | 4990 mm | 4750 mm |
| Vehicle Width | 1850 mm | 1910 mm |
| Vehicle Height | 1470 mm | 1880 mm |
| Wheelbase Size | 2960 mm | 3210 mm |
| Fuel Consumption Overall | 12.4 L/100km | 8.6 L/100km |
| Fuel Tank Capacity | 66 L | 80 L |
