1999 Mercury Grand Marquis vs. 1991 Renault 21
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 Renault 21. In addition, the cost of maintenance, including insurance, on 1991 Renault 21 would be higher. At 4,604 cc (8 cylinders), 1999 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 1999 Mercury Grand Marquis (208 HP @ 4250 RPM) has 133 more horse power than 1991 Renault 21. (75 HP @ 5000 RPM). In normal driving conditions, 1999 Mercury Grand Marquis should accelerate faster than 1991 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercury Grand Marquis weights approximately 877 kg more than 1991 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 Renault 21, 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 (359 Nm @ 3000 RPM) has 230 more torque (in Nm) than 1991 Renault 21. (129 Nm @ 3250 RPM). This means 1999 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 1991 Renault 21. 1999 Mercury Grand Marquis has automatic transmission and 1991 Renault 21 has manual transmission. 1991 Renault 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Mercury Grand Marquis will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Mercury Grand Marquis | 1991 Renault 21 | |
| Make | Mercury | Renault |
| Model | Grand Marquis | 21 |
| Year Released | 1999 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4604 cc | 1721 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 208 HP | 75 HP |
| Engine RPM | 4250 RPM | 5000 RPM |
| Torque | 359 Nm | 129 Nm |
| Torque RPM | 3000 RPM | 3250 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1832 kg | 955 kg |
| Vehicle Length | 5390 mm | 4470 mm |
| Vehicle Width | 2000 mm | 1730 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2760 mm | 2550 mm |
| Fuel Consumption Overall | 11.2 L/100km | 7 L/100km |
| Fuel Tank Capacity | 72 L | 55 L |
