I haven't got HUD but the digital display does not show maps loaded via CarPlay so it is unlikely they will show on the HUD. Personally I don't see why people want anything other than the Jaguar maps. On a recent 2,000 mile drive to and around Scotland I used the Jaguar system whilst my wife sat beside me with Google maps open on her phone. There was virtually no difference between the suggested routes, traffic information etc. Unlike the Jaguar system, Google maps doesn't zoom in when you slow down which I fInd invaluable when negotiating junctions. Each to their own.