How to Get a Replacement Audi A4 Spare Key We've all lost our keys to our car at some point or another. Whatever advanced and sturdy they seem to be, car keys are made of plastic and thin metal, and are susceptible to breaking or getting lost at any moment. https://g28-car-key-solutions90075.blogstival.com/52325490/what-s-holding-back-the-audi-advanced-key-industry