Steve C. writes in via cel phone that LAFD is on the scene at the Chequered Flag car showroom on Lincoln as of 6:30 pm. (Keep our email address in your cel phone and send in what you see around town!)
From the looks of it, the fire is in the north building where incoming cars are kept and worked on at the vintage car dealership, and not in the main showroom buildings.
Update from the always helpful and informative LAFD twitter feed:
Chequered Flag International Car Showroom
4128 Lincoln Boulevard
Marina del Rey, CA 90292