I ordered a simple plug-in power inverter for my 135i. Autobarn.com sent a portable battery pack...completely wrong item...different item number, different price. Over the next 2 weeks I work out the return with their salesperson, return the bad item and wait another 2 weeks for the right item to arrive. Again, a portable battery pack. Give me a break.
I'm glad to take my business to other vendors recommended here in the forum.