2008 GMC Sierra vs. 2007 Mercury Mariner
To start off, 2008 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Mercury Mariner. In addition, the cost of maintenance, including insurance, on 2007 Mercury Mariner would be higher. At 5,999 cc (8 cylinders), 2008 GMC Sierra is equipped with a bigger engine. In terms of performance, 2008 GMC Sierra (353 HP @ 5400 RPM) has 220 more horse power than 2007 Mercury Mariner. (133 HP @ 6000 RPM). In normal driving conditions, 2008 GMC Sierra should accelerate faster than 2007 Mercury Mariner. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Sierra weights approximately 739 kg more than 2007 Mercury Mariner. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 GMC Sierra (506 Nm @ 4400 RPM) has 338 more torque (in Nm) than 2007 Mercury Mariner. (168 Nm @ 4250 RPM). This means 2008 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2007 Mercury Mariner.
Compare all specifications:
| 2008 GMC Sierra | 2007 Mercury Mariner | |
| Make | GMC | Mercury |
| Model | Sierra | Mariner |
| Year Released | 2008 | 2007 |
| Body Type | Pickup | SUV |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 2299 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 353 HP | 133 HP |
| Engine RPM | 5400 RPM | 6000 RPM |
| Torque | 506 Nm | 168 Nm |
| Torque RPM | 4400 RPM | 4250 RPM |
| Fuel Type | Gasoline | Gasoline / Electric Hybrid |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 3 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 2664 kg | 1925 kg |
| Vehicle Length | 5710 mm | 4430 mm |
| Vehicle Width | 2040 mm | 1790 mm |
| Vehicle Height | 1940 mm | 1790 mm |
| Wheelbase Size | 3380 mm | 2630 mm |
| Fuel Consumption Overall | 13.1 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 129 L | 57 L |
