2008 Cadillac STS vs. 1987 Mercury Grand Marquis
To start off, 2008 Cadillac STS is newer by 21 year(s). Which means there will be less support and parts availability for 1987 Mercury Grand Marquis. In addition, the cost of maintenance, including insurance, on 1987 Mercury Grand Marquis would be higher. At 4,942 cc (8 cylinders), 1987 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (320 HP @ 6400 RPM) has 172 more horse power than 1987 Mercury Grand Marquis. (148 HP @ 3200 RPM). In normal driving conditions, 2008 Cadillac STS should accelerate faster than 1987 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 1987 Mercury Grand Marquis weights approximately 115 kg more than 2008 Cadillac STS.
Because 2008 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 1987 Mercury Grand Marquis. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 Cadillac STS (427 Nm @ 4400 RPM) has 61 more torque (in Nm) than 1987 Mercury Grand Marquis. (366 Nm @ 2000 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1987 Mercury Grand Marquis.
Compare all specifications:
| 2008 Cadillac STS | 1987 Mercury Grand Marquis | |
| Make | Cadillac | Mercury |
| Model | STS | Grand Marquis |
| Year Released | 2008 | 1987 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 4942 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 320 HP | 148 HP |
| Engine RPM | 6400 RPM | 3200 RPM |
| Torque | 427 Nm | 366 Nm |
| Torque RPM | 4400 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1635 kg | 1750 kg |
| Vehicle Length | 5000 mm | 5400 mm |
| Vehicle Width | 1850 mm | 1980 mm |
| Vehicle Height | 1470 mm | 1390 mm |
| Wheelbase Size | 2960 mm | 2920 mm |
| Fuel Tank Capacity | 64 L | 90 L |
