Jet Fighter Heads Up Displays (HUD)s

Some information about HUDs on Jet fighters: 

There are two types of HUD. Fixed HUDs require the user to look through a display element attached to the airframe or vehicle chassis. The system determines the image to be presented depending solely on the orientation of the vehicle. Most aircraft HUDs are fixed. Helmet mounted displays (HMD) are technically a form of HUD, the distinction being that they feature a display element that moves with the orientation of the user's head vice the airframe. Many modern fighters (such as F/A-18, F-22, Eurofighter) use both a HUD and an HMD concurrently. The F-35 Lightning II was designed without a HUD, relying solely on the HMD, making it the first modern military fighter not to have a fixed HUD.

HUDs are now available in cars:

Head-up displays are becoming increasingly available in production cars, and usually offer speedometer, tachometer, and navigation system displays. BMW, Lexus, Citroën, GM, and Nissan currently offer some form of HUD system. Motorcycle helmet HUDs are also commercially available. Add-on HUD systems also exist, projecting the display onto a glass combiner mounted on the windshield. These systems have been marketed to police agencies for use with in-vehicle computers. 

This from a BMW: