I've only test driven a few cars equipped with HUDs, but it's a super cool feature. I can see the value of a car that projects nav directions in addition to the

I've only test driven a few cars equipped with HUDs, but it's a super cool feature. I can see the value of a car that projects nav directions in addition to the more standard things like current speed. There's even phone apps you can use to simulate a HUD, if you keep your windshield clean.