SUV sales have slowed in the second half of the year, while sales of crossover utility vehicles (CUVs) have soared, according to the National Automobile Dealers Association. "Gasoline price increases, combined with increased uncertainty about future prices, seem to be changing the mix of light vehicle sales," said NADA chief economist Paul Taylor. Small car sales have increased in recent months, while large and medium-size car sales volume has dropped compared to the same period one year ago.