SANTA MONICA, Calif., April 22 /PRNewswire/ -- TrueCar.com (www.truecar.com), the authority on new car pricing, forecasted today that April 2010 light vehicle sales (including fleet) in the U.S. is expected to be 1,010,059 units, a drop of 5% from March 2010 but a leap of more than 23% from this tim