2009 Cadillac STS vs. 2007 Mercedes-Benz ML
To start off, 2009 Cadillac STS is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz ML. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz ML would be higher. At 4,564 cc (8 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (320 HP @ 6400 RPM) has 133 more horse power than 2007 Mercedes-Benz ML. (187 HP @ 4000 RPM). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 2007 Mercedes-Benz ML. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz ML weights approximately 515 kg more than 2009 Cadillac STS.
Because 2007 Mercedes-Benz ML is four wheel drive (4WD), it will have significant more traction and grip than 2009 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2007 Mercedes-Benz ML 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, 2007 Mercedes-Benz ML (441 Nm @ 1600 RPM) has 14 more torque (in Nm) than 2009 Cadillac STS. (427 Nm @ 4400 RPM). This means 2007 Mercedes-Benz ML will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS.
Compare all specifications:
| 2009 Cadillac STS | 2007 Mercedes-Benz ML | |
| Make | Cadillac | Mercedes-Benz |
| Model | STS | ML |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4564 cc | 2987 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 320 HP | 187 HP |
| Engine RPM | 6400 RPM | 4000 RPM |
| Torque | 427 Nm | 441 Nm |
| Torque RPM | 4400 RPM | 1600 RPM |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1635 kg | 2150 kg |
| Vehicle Length | 5000 mm | 4790 mm |
| Vehicle Width | 1850 mm | 1920 mm |
| Vehicle Height | 1470 mm | 1820 mm |
| Wheelbase Size | 2960 mm | 2920 mm |
| Fuel Consumption Overall | 13.1 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 64 L | 95 L |
