BMW Replacement Car Keys Losing your BMW car keys can be stressful however it doesn't have to be costly. Partner with a locksmith that can provide superior quality at a reasonable cost. Proof of ownership: It is typically an official document that contains your name, address, and vehicle registration number. https://carkeyprogramming24912.amoblog.com/why-all-the-fuss-over-bmw-key-cost-52066435