Automobile dealers probably experienced their worst slump in sales, for more than 16 years, in October 2008. Making up for lost ground, most car manufacturers are offering buyers some attractive deals this month. Dealers are in a race to sell off 2008 models, even as more 2009 models roll into dealer lots, at year end. General Motors has its Red Tag Event; Toyota, had its first-ever zero percent financing offer; Nissan has zero percent financing on popular models and the latest to join the list of manufacturers offering discounts currently, is BMW. Earlier, BMW offered 0.9% low-rate financing on all 2008 BMW models (apart from the X6, M3…