GMC Sierra Tops the List of Best Savings in October, According to TrueCar

SANTA MONICA, Calif., Oct. 13, 2014 /PRNewswire/ -- The GMC Sierra 1500, which sells at an average of 21 percent off MSRP, tops October's list of best savings on new vehicles, according to TrueCar, Inc. (NASDAQ: TRUE), the negotiation-free car buying and selling platform. Published...