2007 Cadillac STS vs. 2008 Mercedes-Benz R
To start off, 2008 Mercedes-Benz R is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2007 Cadillac STS would be higher. At 4,565 cc (8 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (320 HP @ 6400 RPM) has 99 more horse power than 2008 Mercedes-Benz R. (221 HP @ 3800 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2008 Mercedes-Benz R. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz R weights approximately 729 kg more than 2007 Cadillac STS.
Because 2008 Mercedes-Benz R is four wheel drive (4WD), it will have significant more traction and grip than 2007 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2008 Mercedes-Benz R 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, 2008 Mercedes-Benz R (510 Nm @ 1600 RPM) has 83 more torque (in Nm) than 2007 Cadillac STS. (427 Nm @ 4400 RPM). This means 2008 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2007 Cadillac STS.
Compare all specifications:
| 2007 Cadillac STS | 2008 Mercedes-Benz R | |
| Make | Cadillac | Mercedes-Benz |
| Model | STS | R |
| Year Released | 2007 | 2008 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 2987 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 221 HP |
| Engine RPM | 6400 RPM | 3800 RPM |
| Torque | 427 Nm | 510 Nm |
| Torque RPM | 4400 RPM | 1600 RPM |
| Engine Bore Size | 93 mm | 83 mm |
| Engine Stroke Size | 84 mm | 92 mm |
| Engine Compression Ratio | 10.5:1 | 17.7:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1566 kg | 2295 kg |
| Vehicle Length | 4990 mm | 5180 mm |
| Vehicle Width | 1850 mm | 1930 mm |
| Vehicle Height | 1470 mm | 1670 mm |
| Wheelbase Size | 2960 mm | 3220 mm |
| Fuel Consumption City | 13.8 L/100km | 11.2 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 64 L | 80 L |
