2003 Buick Regal vs. 2006 Mercury Mariner
To start off, 2006 Mercury Mariner is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Buick Regal. In addition, the cost of maintenance, including insurance, on 2003 Buick Regal would be higher. At 3,789 cc (6 cylinders), 2003 Buick Regal is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercury Mariner weights approximately 365 kg more than 2003 Buick Regal.
Because 2006 Mercury Mariner is four wheel drive (4WD), it will have significant more traction and grip than 2003 Buick Regal. In wet, icy, snow, or gravel driving conditions, 2006 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, 2003 Buick Regal (312 Nm @ 4000 RPM) has 144 more torque (in Nm) than 2006 Mercury Mariner. (168 Nm @ 4250 RPM). This means 2003 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 2006 Mercury Mariner.
Compare all specifications:
| 2003 Buick Regal | 2006 Mercury Mariner | |
| Make | Buick | Mercury |
| Model | Regal | Mariner |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3789 cc | 2299 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 197 HP | 0 HP |
| Torque | 312 Nm | 168 Nm |
| Torque RPM | 4000 RPM | 4250 RPM |
| Engine Bore Size | 97 mm | 87.5 mm |
| Engine Stroke Size | 86 mm | 94 mm |
| Engine Compression Ratio | 9.4:1 | 12.3:1 |
| Fuel Type | Gasoline | Gasoline / Electric Hybrid |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1925 kg |
| Vehicle Length | 4990 mm | 4430 mm |
| Vehicle Width | 1850 mm | 1790 mm |
| Vehicle Height | 1440 mm | 1790 mm |
| Wheelbase Size | 2780 mm | 2630 mm |
| Fuel Tank Capacity | 64 L | 57 L |
