2007 Cadillac STS vs. 2009 Mercury Mountaineer
To start off, 2009 Mercury Mountaineer is newer by 2 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 4,009 cc (6 cylinders), 2009 Mercury Mountaineer is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (255 HP @ 6500 RPM) has 45 more horse power than 2009 Mercury Mountaineer. (210 HP @ 5100 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2009 Mercury Mountaineer.
Because 2009 Mercury Mountaineer 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, 2009 Mercury Mountaineer 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, 2009 Mercury Mountaineer (345 Nm @ 3700 RPM) has 3 more torque (in Nm) than 2007 Cadillac STS. (342 Nm @ 3200 RPM). This means 2009 Mercury Mountaineer will have an easier job in driving up hills or pulling heavy equipment than 2007 Cadillac STS.
Compare all specifications:
| 2007 Cadillac STS | 2009 Mercury Mountaineer | |
| Make | Cadillac | Mercury |
| Model | STS | Mountaineer |
| Year Released | 2007 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 4009 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 255 HP | 210 HP |
| Engine RPM | 6500 RPM | 5100 RPM |
| Torque | 342 Nm | 345 Nm |
| Torque RPM | 3200 RPM | 3700 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4990 mm | 4920 mm |
| Vehicle Width | 1850 mm | 1880 mm |
| Vehicle Height | 1470 mm | 1860 mm |
| Wheelbase Size | 2960 mm | 2890 mm |
| Fuel Consumption | 8.7 L/100km | 12.4 L/100km |
| Fuel Consumption City | 13.1 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 11.2 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 64 L | 85 L |
