Are you funding this yourself, or filing a claim? My X5 took a large rock chip on the way home from vacation a few years ago. It had grown into an 8in long crack until I drove the 200 miles home. My insurance guy tried to fob me off onto Safelite; I fought them and ended up having BMW glass installed by the dealer.

If you have Geico or Progressive, of one of the budget carriers, they'll insist on Safelite and probably won't back down. I called my agent - a real live human being where I have my auto, home, umbrella and life policies and told him if they didn't cover BMW glass that I'd leave. Five minutes later the claim was approved for BMW glass.

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12 E70 3.5i xDrive
03 E46 330i ZHP
01 E53 3.0i
98 E36 323is
12 Audi A4 Quattro
79 Triumph Spitfire
73 MGB