As far as automotive glass you can't drill tempered glass.... it is drilled before it is tempered.... you could drill safety glass ( "lamanted" 2 pieces of glass with plastic in the middle) like the windshield is made of. but in todays cars the rest of the glass is tempered. when you try to drill it it will break into little squares. Old Castle glass in LA Ca. could make you one but for $$$

Good Luck
MM64