2008 Mercury Mountaineer vs. 2004 Toyota Sienna
To start off, 2008 Mercury Mountaineer is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Toyota Sienna. In addition, the cost of maintenance, including insurance, on 2004 Toyota Sienna would be higher. At 4,605 cc (8 cylinders), 2008 Mercury Mountaineer is equipped with a bigger engine. In terms of performance, 2008 Mercury Mountaineer (292 HP @ 5750 RPM) has 98 more horse power than 2004 Toyota Sienna. (194 HP @ 5600 RPM). In normal driving conditions, 2008 Mercury Mountaineer should accelerate faster than 2004 Toyota Sienna. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercury Mountaineer weights approximately 131 kg more than 2004 Toyota Sienna. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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 Mercury Mountaineer (407 Nm @ 3950 RPM) has 134 more torque (in Nm) than 2004 Toyota Sienna. (273 Nm @ 4300 RPM). This means 2008 Mercury Mountaineer will have an easier job in driving up hills or pulling heavy equipment than 2004 Toyota Sienna.
Compare all specifications:
| 2008 Mercury Mountaineer | 2004 Toyota Sienna | |
| Make | Mercury | Toyota |
| Model | Mountaineer | Sienna |
| Year Released | 2008 | 2004 |
| Body Type | SUV | Minivan |
| Engine Position | Front | Front |
| Engine Size | 4605 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 292 HP | 194 HP |
| Engine RPM | 5750 RPM | 5600 RPM |
| Torque | 407 Nm | 273 Nm |
| Torque RPM | 3950 RPM | 4300 RPM |
| Engine Compression Ratio | 9.7:1 | 10.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1836 kg | 1705 kg |
| Vehicle Length | 4920 mm | 4920 mm |
| Vehicle Width | 1880 mm | 1870 mm |
| Vehicle Height | 1860 mm | 1720 mm |
| Wheelbase Size | 2890 mm | 2910 mm |
