2007 Cadillac STS vs. 1999 Mercury Grand Marquis
To start off, 2007 Cadillac STS is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Mercury Grand Marquis. In addition, the cost of maintenance, including insurance, on 1999 Mercury Grand Marquis would be higher. At 4,604 cc (8 cylinders), 1999 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (254 HP @ 6500 RPM) has 46 more horse power than 1999 Mercury Grand Marquis. (208 HP @ 4250 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 1999 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercury Grand Marquis weights approximately 50 kg more than 2007 Cadillac STS.
Because 2007 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 1999 Mercury Grand Marquis. In wet, icy, snow, or gravel driving conditions, 2007 Cadillac STS will offer significantly more control. 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 17 more torque (in Nm) than 2007 Cadillac STS. (342 Nm @ 3200 RPM). This means 1999 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 2007 Cadillac STS.
Compare all specifications:
| 2007 Cadillac STS | 1999 Mercury Grand Marquis | |
| Make | Cadillac | Mercury |
| Model | STS | Grand Marquis |
| Year Released | 2007 | 1999 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3556 cc | 4604 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 254 HP | 208 HP |
| Engine RPM | 6500 RPM | 4250 RPM |
| Torque | 342 Nm | 359 Nm |
| Torque RPM | 3200 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1782 kg | 1832 kg |
| Vehicle Length | 4990 mm | 5390 mm |
| Vehicle Width | 1850 mm | 2000 mm |
| Vehicle Height | 1470 mm | 1450 mm |
| Wheelbase Size | 2960 mm | 2760 mm |
| Fuel Consumption Overall | 12.4 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 66 L | 72 L |
