Mercury Grand Marquis Research
Read the latest reviews of the new Grand Marquis, including multi-vehicle comparisons, long-term tests, first rides or detailed new-car road tests. The Grand Marquis gets 12 mpg in the city and 17 on the highway, and has a 5 star frontal impact rating for the driver and a 5 star frontal impact rating for the passenger. Other similar vehicles are the Pontiac G6 and the Chevrolet Colorado.