2006 Cadillac STS vs. 2010 Mercury Grand Marquis
To start off, 2010 Mercury Grand Marquis is newer by 4 year(s). Which means there will be less support and parts availability for 2006 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2006 Cadillac STS would be higher. At 4,600 cc (8 cylinders), 2010 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 2006 Cadillac STS (321 HP @ 6400 RPM) has 97 more horse power than 2010 Mercury Grand Marquis. (224 HP @ 4800 RPM). In normal driving conditions, 2006 Cadillac STS should accelerate faster than 2010 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 2010 Mercury Grand Marquis weights approximately 49 kg more than 2006 Cadillac STS.
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, 2006 Cadillac STS (427 Nm @ 4400 RPM) has 55 more torque (in Nm) than 2010 Mercury Grand Marquis. (372 Nm @ 4000 RPM). This means 2006 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2010 Mercury Grand Marquis.
Compare all specifications:
| 2006 Cadillac STS | 2010 Mercury Grand Marquis | |
| Make | Cadillac | Mercury |
| Model | STS | Grand Marquis |
| Year Released | 2006 | 2010 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 4600 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 321 HP | 224 HP |
| Engine RPM | 6400 RPM | 4800 RPM |
| Torque | 427 Nm | 372 Nm |
| Torque RPM | 4400 RPM | 4000 RPM |
| Fuel Type | Gasoline - Premium | Flex Fuel |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1818 kg | 1867 kg |
| Vehicle Length | 4990 mm | 5385 mm |
| Vehicle Width | 1850 mm | 1989 mm |
| Vehicle Height | 1470 mm | 1430 mm |
| Wheelbase Size | 2960 mm | 2911 mm |
| Fuel Consumption | 9.1 L/100km | 9.8 L/100km |
| Fuel Consumption City | 13.8 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 66 L | 72 L |
