2021 GMC AT4 has 180,000 miles on it doesn't need anything done to it. Upgraded the wheels and tires and has a Ready Lift suspension lift kit. Tires have maybe 15,000 miles on them. Excellent fuel mileage with this 3 cylinder diesel engine. Interior pictures to come. I can take more pictures by request. Call or text with any question. 785-SixThreeNine-25NineZero