2008 Cadillac STS vs. 2008 Mercury Grand Marquis
To start off, both 2008 Cadillac STS and 2008 Mercury Grand Marquis were released in the same year (2008). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,606 cc (8 cylinders), 2008 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (302 HP @ 6300 RPM) has 78 more horse power than 2008 Mercury Grand Marquis. (224 HP @ 4800 RPM). In normal driving conditions, 2008 Cadillac STS should accelerate faster than 2008 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercury Grand Marquis weights approximately 276 kg more than 2008 Cadillac STS.
Because 2008 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 2008 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, both vehicles can yield 369 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2008 Cadillac STS | 2008 Mercury Grand Marquis | |
| Make | Cadillac | Mercury |
| Model | STS | Grand Marquis |
| Year Released | 2008 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3600 cc | 4606 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 302 HP | 224 HP |
| Engine RPM | 6300 RPM | 4800 RPM |
| Torque | 369 Nm | 369 Nm |
| Torque RPM | 5200 RPM | 4000 RPM |
| Engine Compression Ratio | 11.3:1 | 9.4:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1836 kg |
| Vehicle Length | 5000 mm | 5370 mm |
| Vehicle Width | 1850 mm | 2000 mm |
| Vehicle Height | 1470 mm | 1440 mm |
| Wheelbase Size | 2960 mm | 2920 mm |
| Fuel Consumption Overall | 11.8 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 64 L | 72 L |
