Has the 3.6, best engine for these impalas has 300 hp it runs smooth for the mileage, has remote start, I replaced a few suspension parts like the tie rods, sway bar links,and bearing, did all new Iridium spark plugs and newer brake discs and pads, new belt tensioner and belt, oil changed every 4000 miles and replacing the transmission fluid and filter soon only issue is the right side cv axle needs to be replaced, has some rust but minimal for a mn car. This was a rental for 6 years than, than an older gentleman owned it till 2023 so it has not been beat on like all the other ones, 3800 can negotiate, feel free to ask questions-