Buy Here Pay Here! Guaranteed Financing! $1,000 Down Financing! How economical is this! Just in, this terrific, reliable 2007 Pontiac G6 comes with an ECOTEC 2.4L I4 MFI engine and FWD. The G6 scored the top rating in the IIHS frontal offset test. Need gas? I don't think so. At least not very much. New Car Test Drive called it ''...a roomy car that offers good road manners and excellent overall function...''