1991 Buick Riviera vs. 1999 Mercury Grand Marquis
To start off, 1999 Mercury Grand Marquis is newer by 8 year(s). Which means there will be less support and parts availability for 1991 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1991 Buick Riviera would be higher. At 4,598 cc (8 cylinders), 1999 Mercury Grand Marquis is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercury Grand Marquis weights approximately 186 kg more than 1991 Buick Riviera.
Because 1999 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 1999 Mercury Grand Marquis. However, in wet, icy, snow, or gravel driving conditions, 1991 Buick Riviera, 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, 1999 Mercury Grand Marquis (373 Nm) has 88 more torque (in Nm) than 1991 Buick Riviera. (285 Nm). This means 1999 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1991 Buick Riviera.
Compare all specifications:
| 1991 Buick Riviera | 1999 Mercury Grand Marquis | |
| Make | Buick | Mercury |
| Model | Riviera | Grand Marquis |
| Year Released | 1991 | 1999 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3800 cc | 4598 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 170 HP | 0 HP |
| Torque | 285 Nm | 373 Nm |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1520 kg | 1706 kg |
| Vehicle Length | 5040 mm | 4670 mm |
| Vehicle Width | 1830 mm | 1760 mm |
| Vehicle Height | 1350 mm | 1390 mm |
| Wheelbase Size | 2760 mm | 2710 mm |
