2005 Mercury Grand Marquis vs. 2003 Opel Signum
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 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 4,605 cc (8 cylinders), 2005 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 2005 Mercury Grand Marquis (224 HP) has 109 more horse power than 2003 Opel Signum. (115 HP). In normal driving conditions, 2005 Mercury Grand Marquis should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercury Grand Marquis weights approximately 301 kg more than 2003 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Mercury Grand Marquis is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2005 Mercury Grand Marquis. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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 Mercury Grand Marquis (373 Nm) has 93 more torque (in Nm) than 2003 Opel Signum. (280 Nm). This means 2005 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2005 Mercury Grand Marquis | 2003 Opel Signum | |
| Make | Mercury | Opel |
| Model | Grand Marquis | Signum |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4605 cc | 2172 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 224 HP | 115 HP |
| Torque | 373 Nm | 280 Nm |
| Drive Type | Rear | Front |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1836 kg | 1535 kg |
| Vehicle Length | 5390 mm | 4640 mm |
| Vehicle Width | 1990 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2900 mm | 2840 mm |
