If you've been hankering for some HUD action in your next auto, you'll have one more choice come next spring: the all-new 2012 BMW 3 Series. The launch will mark the first time a heads-up display has made it into Bavaria's volume seller, after debuting as an optional extra eons ago on its 5 Series. Since then, HUDs of limited hues have permeated München's high-end, splaying speed and navigation directions in the line of sight of road-going elites everywhere. However, this iteration is "full-color," which besides pleasing ROY G. BIV fans, makes it "more intuitive," as the company reasons it'll aid drivers i