@thepurchaselab: 415 horsepower, a rare rear-drive sedan, and a used price under $25K. The Pontiac G8 GXP might be the best sleeper you can still buy, if you budget for a possible lifter repair. Full breakdown: price, what works, what doesn't, and our Purchase Score. Price as of Oct 2026. #PontiacG8 #G8GXP #Pontiac #CarTok #UsedCarBuying #ThePurchaseLab #CarReview #Sleeper #LS3 #CarBuyingTips