Sharp fall in hybrid vehicles sales as US tightens belt By Bernard Simon in Toronto Published: January 1 2009 23:31 | Last updated: January 1 2009 23:31 Americans’ appetite for hybrid cars is evaporating as tumbling fuel prices and tighter household budgets trump environmental concerns. The sudden reversal in what was, until a few months ago, one of the hottest segments of the world’s biggest car market creates a new area of uncertainty for carmakers, such as Toyota, General Motors, Ford Motor and Honda, that are investing heavily in hybrids and other fuel-efficient technologies. Industry executives, including Alan Mulally, Ford’s...