I ended up bought a 2007 CPO 335i coupe from BMW Cleveland. Space gray with coral red interior. This car is a dream !!!!
About Luxury Auto Xchange, I had communications with both Luca and George. They are kind of weird. Firstival, George is spamming me with a lot of nonsense emails, 1 line quote until I un-subscribed from his whatever service. He also told me that he is the general manager of this place, meanwhile, Luca told me that George is the owner. George is kind of rude from his emails too. I do not feel comfortable doing business with him. YMMV.