2011 Buick Regal

154,000 miles 2011 Buick Regal CXL Turbo 2.0L.This Regal has heated leather driver/passenger power seats , automatic headlights, rear parking sensors, and a factory remote start. cold AC, and has a CD player with steering wheel controls. I replaced the front door speakers. have two key fobs, only one has a key. Has 1 year old all-season tires, brake pads and rotors were replaced last year. all timing chain components replaced in November 2023. Everything replaced including the throttle body , rear passenger side shock absorber, rear tire rods, serpentine belt, spark plugs, radiator hose, valve cover gasket is all on Carfax. Engine code comes on as “turbo underboost" when you try to accelerate too fast , the back two windows don't roll down, Tire pressure light comes on sometimes and needs an oil change. some cosmetic damage on the front and rear bumpers and passenger side front panel, wear on seats. Has been sitting for a couple months only turned on and driven around the neighborhood occasionally. See photos