Luxury car Christmas sale euphemisms

I understand that luxury car makers don't want to offend non-Christian customers and they don't want to cheapen their brand by advertising "sales", but these euphemisms are ridiculous.

BMW "The BMW Joy Sales Event"

Mercedes "The 2010 Winter Event"

Audi "The Season of Audi Event"

Infiniti "Infiniti Limited Engagement Winter Event"

Lexus "The December to Remember Sales Event"