2009 Mercury Mariner vs. 2003 Oldsmobile Alero
To start off, 2009 Mercury Mariner is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Oldsmobile Alero. In addition, the cost of maintenance, including insurance, on 2003 Oldsmobile Alero would be higher. At 2,967 cc (6 cylinders), 2009 Mercury Mariner is equipped with a bigger engine. In terms of performance, 2009 Mercury Mariner (240 HP @ 6550 RPM) has 101 more horse power than 2003 Oldsmobile Alero. (139 HP @ 5600 RPM). In normal driving conditions, 2009 Mercury Mariner should accelerate faster than 2003 Oldsmobile Alero. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercury Mariner weights approximately 565 kg more than 2003 Oldsmobile Alero. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Mercury Mariner is four wheel drive (4WD), it will have significant more traction and grip than 2003 Oldsmobile Alero. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Mercury Mariner (302 Nm @ 4500 RPM) has 99 more torque (in Nm) than 2003 Oldsmobile Alero. (203 Nm @ 4000 RPM). This means 2009 Mercury Mariner will have an easier job in driving up hills or pulling heavy equipment than 2003 Oldsmobile Alero.
Compare all specifications:
| 2009 Mercury Mariner | 2003 Oldsmobile Alero | |
| Make | Mercury | Oldsmobile |
| Model | Mariner | Alero |
| Year Released | 2009 | 2003 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 2196 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 240 HP | 139 HP |
| Engine RPM | 6550 RPM | 5600 RPM |
| Torque | 302 Nm | 203 Nm |
| Torque RPM | 4500 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1925 kg | 1360 kg |
| Vehicle Length | 4460 mm | 4750 mm |
| Vehicle Width | 1810 mm | 1790 mm |
| Vehicle Height | 1780 mm | 1390 mm |
| Wheelbase Size | 2630 mm | 2720 mm |
| Fuel Tank Capacity | 62 L | 53 L |
