2003 Mazda 6 vs. 2005 Pontiac Grand Prix
To start off, 2005 Pontiac Grand Prix is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Mazda 6. In addition, the cost of maintenance, including insurance, on 2003 Mazda 6 would be higher. At 3,786 cc (6 cylinders), 2005 Pontiac Grand Prix is equipped with a bigger engine. In terms of performance, 2005 Pontiac Grand Prix (260 HP @ 5200 RPM) has 122 more horse power than 2003 Mazda 6. (138 HP @ 3500 RPM) In normal driving conditions, 2005 Pontiac Grand Prix should accelerate faster than 2003 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Pontiac Grand Prix weights approximately 80 kg more than 2003 Mazda 6. 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, 2005 Pontiac Grand Prix (380 Nm) has 70 more torque (in Nm) than 2003 Mazda 6. (310 Nm). This means 2005 Pontiac Grand Prix will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda 6.
Compare all specifications:
| 2003 Mazda 6 | 2005 Pontiac Grand Prix | |
| Make | Mazda | Pontiac |
| Model | 6 | Grand Prix |
| Year Released | 2003 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1999 cc | 3786 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 138 HP | 260 HP |
| Engine RPM | 3500 RPM | 5200 RPM |
| Torque | 310 Nm | 380 Nm |
| Engine Bore Size | 86 mm | 97.1 mm |
| Engine Stroke Size | 86 mm | 86 mm |
| Engine Compression Ratio | 18.0:1 | 8.5:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1540 kg | 1620 kg |
| Vehicle Length | 4710 mm | 5040 mm |
| Vehicle Width | 1790 mm | 1830 mm |
| Vehicle Height | 1490 mm | 1420 mm |
| Wheelbase Size | 2680 mm | 2810 mm |
| Fuel Tank Capacity | 64 L | 64 L |
