The average fuel economy of new cars sold in the U.S. in February is up 18% from 2007 levels,...

|By:, SA News Editor

The average fuel economy of new cars sold in the U.S. in February is up 18% from 2007 levels, estimates the University of Michigan. That leaves Bill Gross excited about the future gains electrics and hybrids could produce, though it looks as if sales of more fuel-efficient conventional cars have much to do with recent advances.