 One change in 2009 was the deletion of the center stack oil pressure and voltage gauges.Midway through the 2009 model year a few changes were made to the G8 GT, including an additional pair of catalytic converters which reduced engine output to , the addition of bluetooth and rear cup holders that pulled out from under the rear seats.In addition to the larger engine and six-speed transmission, GT models also contain additional equipment, including all of the standard Sedan features plus quad tailpipes, clear taillight lenses (as opposed to the Sedan's traditional red taillights), automatic dual-zone air conditioning, a larger center-console display screen, and an 11-speaker Blaupunkt premium audio system with 2 subwoofers, six-disc CD changer, and auxiliary input jack.