2007 Cadillac STS vs. 2006 Mercury Mariner
To start off, 2007 Cadillac STS is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Mercury Mariner. In addition, the cost of maintenance, including insurance, on 2006 Mercury Mariner would be higher. At 3,556 cc (6 cylinders), 2007 Cadillac STS is equipped with a bigger engine.
Because 2006 Mercury Mariner 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, 2006 Mercury Mariner 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 Cadillac STS (342 Nm @ 3200 RPM) has 174 more torque (in Nm) than 2006 Mercury Mariner. (168 Nm @ 4250 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2006 Mercury Mariner.
Compare all specifications:
| 2007 Cadillac STS | 2006 Mercury Mariner | |
| Make | Cadillac | Mercury |
| Model | STS | Mariner |
| Year Released | 2007 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 2299 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 255 HP | 0 HP |
| Torque | 342 Nm | 168 Nm |
| Torque RPM | 3200 RPM | 4250 RPM |
| Engine Bore Size | 94 mm | 87.5 mm |
| Engine Stroke Size | 86 mm | 94 mm |
| Engine Compression Ratio | 10.2:1 | 12.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline / Electric Hybrid |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4990 mm | 4430 mm |
| Vehicle Width | 1850 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1790 mm |
| Wheelbase Size | 2960 mm | 2630 mm |
| Fuel Consumption Highway | 8.7 L/100km | 8.1 L/100km |
| Fuel Consumption City | 13.1 L/100km | 7.1 L/100km |
| Fuel Consumption Overall | 11.2 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 64 L | 57 L |
