Americans drove less for the sixth month in a row, according to the U.S. Department of Transportation.

Americans drove 1.4 billion fewer highway miles in April 2008 than at the same time a year earlier and 400 million miles less than in March of this year.  Vehicle miles traveled (VMT) on all public roads for April 2008 fell 1.8% as compared with April 2007 travel. This marks a decline of nearly 20 billion miles traveled this year, and nearly 30 billion miles traveled since November.

Data also show midsize SUV sales were down last month 38 percent over May of last year; car sales, which had accounted for less than half of the industry volume in 2007, rose to 57 percent in May.  Past trends have shown Americans will continue to drive despite high gas prices, but will drive more fuel efficient vehicles consuming less fuel.