After just one year on the market, Lincoln is once again mothballing its classic “Zephyr” nameplate and affixing the moniker “MKZ” to its newest entry-luxury sedan. And please, don’t call it the M-K-Z. It’s the Mark Z – Mark after the series of luxury coupes Lincoln produced between the late 1960s and late 1990s, and Z after the Zephyr. Besides, Zephyr probably reminded too many Gen-Xers of the ill-fated Mercury family sedan of the same name that was sold during the disco era, so good riddance. But a name change is not all that’s new for the 2007 Lincoln MKZ, shown for the first time at the 2006 Chicago Auto Show.