2008 Audi A8 vs. 2009 Mercury Mariner
To start off, 2009 Mercury Mariner is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A8. In addition, the cost of maintenance, including insurance, on 2008 Audi A8 would be higher. At 2,967 cc (6 cylinders), 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (230 HP @ 4000 RPM) has 58 more horse power than 2009 Mercury Mariner. (172 HP @ 6000 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 2009 Mercury Mariner. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercury Mariner weights approximately 89 kg more than 2008 Audi A8.
Because 2008 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Mercury Mariner. In wet, icy, snow, or gravel driving conditions, 2008 Audi A8 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, 2008 Audi A8 (450 Nm @ 1400 RPM) has 218 more torque (in Nm) than 2009 Mercury Mariner. (232 Nm @ 4500 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercury Mariner.
Compare all specifications:
| 2008 Audi A8 | 2009 Mercury Mariner | |
| Make | Audi | Mercury |
| Model | A8 | Mariner |
| Year Released | 2008 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 2488 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 172 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 450 Nm | 232 Nm |
| Torque RPM | 1400 RPM | 4500 RPM |
| Engine Bore Size | 83 mm | 90.2 mm |
| Engine Stroke Size | 91.4 mm | 94 mm |
| Engine Compression Ratio | 17.0:1 | 9.7:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1836 kg | 1925 kg |
| Vehicle Length | 5060 mm | 4460 mm |
| Vehicle Width | 1900 mm | 1810 mm |
| Vehicle Height | 1450 mm | 1780 mm |
| Wheelbase Size | 2950 mm | 2630 mm |
| Fuel Consumption Overall | 8.4 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 90 L | 62 L |
