2009 Cadillac STS vs. 1989 Mercury Grand Marquis
To start off, 2009 Cadillac STS is newer by 20 year(s). Which means there will be less support and parts availability for 1989 Mercury Grand Marquis. In addition, the cost of maintenance, including insurance, on 1989 Mercury Grand Marquis would be higher. At 4,941 cc (8 cylinders), 1989 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (300 HP) has 152 more horse power than 1989 Mercury Grand Marquis. (148 HP). In normal driving conditions, 2009 Cadillac STS should accelerate faster than 1989 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 2009 Cadillac STS weights approximately 32 kg more than 1989 Mercury Grand Marquis. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1989 Mercury Grand Marquis (366 Nm @ 2000 RPM) has 93 more torque (in Nm) than 2009 Cadillac STS. (273 Nm @ 5200 RPM). This means 1989 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS.
Compare all specifications:
| 2009 Cadillac STS | 1989 Mercury Grand Marquis | |
| Make | Cadillac | Mercury |
| Model | STS | Grand Marquis |
| Year Released | 2009 | 1989 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3564 cc | 4941 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 300 HP | 148 HP |
| Torque | 273 Nm | 366 Nm |
| Torque RPM | 5200 RPM | 2000 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1782 kg | 1750 kg |
| Vehicle Length | 4990 mm | 5400 mm |
| Vehicle Width | 1850 mm | 1980 mm |
| Vehicle Height | 1470 mm | 1390 mm |
| Wheelbase Size | 2960 mm | 2920 mm |
| Fuel Tank Capacity | 58 L | 90 L |
