The concept of a Heads-up Display (HUD) is not new. The HUD is a precursor technology to Augmented Reality (AR) HUD that we are starting to see in automotive systems requirements today. AR HUD systems project information so that it appears integrated with the real-world environment, thereby giving the driver scan efficiency of their environment while reducing the cognitive load. AR HUD Technology is in rapid expansion mode currently and the automotive HUD market is poised for some significant growth. This paper discusses what you need to understand to successfully build and implement an AR HUD system.