Complex sentence: The boat was originally named the Mumm 30 after its original title sponsor Champagne Mumm this sponsorship ended in 2007 and the class rebranded to Farr 30 using a modified version of the Farr 40 class logo.
Split into simpler sentences: The boat was originally named the Mumm 30 after its original title sponsor Champagne Mumm. After his sponsorship ended in 2007, the class then rebranded to Farr 30, using a modified version of the Farr 40 class logo.