The Montego is Mercury's newest family sedan. Although the Grand Marquis is still the king of the hill at Mercury, the Montego is arguably the better sedan. Based on the same platform as the Ford Five Hundred, the Montego offers a bit more style and personality than its Ford twin, a helpful advantage in a segment crowded with worthy competitors. With a larger rear seat and a larger trunk than the full-size Grand Marquis, the Montego seems the more logical of the two. The Montego offers a frugal six-cylinder engine, as opposed to the Grand Marquis' V8, as well as the option of all-wheel drive and a revolutionary continuously variable automatic transmission.