2007 GMC Sierra vs. 2009 Mercury Mariner
To start off, 2009 Mercury Mariner is newer by 2 year(s). Which means there will be less support and parts availability for 2007 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2007 GMC Sierra would be higher. At 5,999 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (300 HP @ 4400 RPM) has 60 more horse power than 2009 Mercury Mariner. (240 HP @ 6550 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2009 Mercury Mariner.
Let's talk about torque, 2007 GMC Sierra (488 Nm @ 4000 RPM) has 186 more torque (in Nm) than 2009 Mercury Mariner. (302 Nm @ 4500 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercury Mariner.
Compare all specifications:
| 2007 GMC Sierra | 2009 Mercury Mariner | |
| Make | GMC | Mercury |
| Model | Sierra | Mariner |
| Year Released | 2007 | 2009 |
| Body Type | Pickup | SUV |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 2967 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 300 HP | 240 HP |
| Engine RPM | 4400 RPM | 6550 RPM |
| Torque | 488 Nm | 302 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 6570 mm | 4460 mm |
| Vehicle Width | 2450 mm | 1810 mm |
| Vehicle Height | 1970 mm | 1780 mm |
| Wheelbase Size | 4250 mm | 2630 mm |
| Fuel Tank Capacity | 132 L | 62 L |
