2005 Mercury Grand Marquis vs. 2003 Pontiac GTO
To start off, 2005 Mercury Grand Marquis is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Pontiac GTO. In addition, the cost of maintenance, including insurance, on 2003 Pontiac GTO would be higher. At 5,664 cc (8 cylinders), 2003 Pontiac GTO is equipped with a bigger engine. In terms of performance, 2003 Pontiac GTO (350 HP) has 126 more horse power than 2005 Mercury Grand Marquis. (224 HP) In normal driving conditions, 2003 Pontiac GTO should accelerate faster than 2005 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercury Grand Marquis weights approximately 167 kg more than 2003 Pontiac GTO.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2003 Pontiac GTO (495 Nm) has 122 more torque (in Nm) than 2005 Mercury Grand Marquis. (373 Nm). This means 2003 Pontiac GTO will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercury Grand Marquis.
Compare all specifications:
| 2005 Mercury Grand Marquis | 2003 Pontiac GTO | |
| Make | Mercury | Pontiac |
| Model | Grand Marquis | GTO |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4603 cc | 5664 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 224 HP | 350 HP |
| Torque | 373 Nm | 495 Nm |
| Engine Compression Ratio | 9.4:1 | 10.1:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1857 kg | 1690 kg |
| Vehicle Length | 5390 mm | 4830 mm |
| Vehicle Width | 1990 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 2920 mm | 2750 mm |
| Fuel Tank Capacity | 72 L | 70 L |
