cartechboy (2660665) writes The Toyota Prius is pretty darn popular, especially in California. One might think that hybrid sales are on the rise as gas prices continue to fluctuate, but it seems hybrid sales in the U.S. might be peaking. Researchers at IHS Automotive found that U.S. hybrid sales haven't kept pace with the rest of the market. In the automotive world, conventional wisdom states that adding a model to a brand or segment will increase sales--but that hasn't happened with hybrids. The number of hybrid offerings has almost doubled from 24 in 2009 to 47 in 2014--but U.S. hybrid sales haven't dramatically increased. In fact, hybrid market share actually declined from 2009 to 2010, and then again from 2013 to 2014. So if consumers aren't buying hybrids, what are they buying? It seems some hybrid early adopters are now switching to plug-in hybrids or electric cars stating that these models are just nicer to drive.