I believe it is the same main distributor, but pricing is different for different companies I believe.
I have found other sites with same fastlane interface. One parts supplier can be supplying parts to numerous sources, with the same interface they provide.
Partsshop and fastlane are two seperate stores on this site.
Regardless, I will order from fastlane or partsshop over the others, because ordering from here, helps to support this site which has a wealth of information you just wont find at the other guys.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.