2005 Mercury Grand Marquis vs. 1991 Pontiac Bonneville
To start off, 2005 Mercury Grand Marquis is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Pontiac Bonneville. In addition, the cost of maintenance, including insurance, on 1991 Pontiac Bonneville would be higher. At 4,603 cc (8 cylinders), 2005 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 2005 Mercury Grand Marquis (224 HP) has 74 more horse power than 1991 Pontiac Bonneville. (150 HP). In normal driving conditions, 2005 Mercury Grand Marquis should accelerate faster than 1991 Pontiac Bonneville. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercury Grand Marquis weights approximately 357 kg more than 1991 Pontiac Bonneville. 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, 1991 Pontiac Bonneville, 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 102 more torque (in Nm) than 1991 Pontiac Bonneville. (271 Nm). This means 2005 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1991 Pontiac Bonneville.
Compare all specifications:
| 2005 Mercury Grand Marquis | 1991 Pontiac Bonneville | |
| Make | Mercury | Pontiac |
| Model | Grand Marquis | Bonneville |
| Year Released | 2005 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4603 cc | 3791 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 224 HP | 150 HP |
| Torque | 373 Nm | 271 Nm |
| Engine Compression Ratio | 9.4:1 | 8.5:1 |
| Drive Type | Rear | Front |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1857 kg | 1500 kg |
| Vehicle Length | 5390 mm | 5050 mm |
| Vehicle Width | 1990 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1420 mm |
| Wheelbase Size | 2920 mm | 2820 mm |
| Fuel Tank Capacity | 72 L | 68 L |
