Kia Optima 2017 Automatic Gasoline mileage: 300 KM or more Optima 2017. I've had the car for 5 months. I changed the tires, shock absorbers, control arm bushings, and the rear differential. I replaced the engine with a brand new GT-T engine with a 3-year warranty. The car is beautiful for the user. It has 4 cosmetic paint pieces with the bumpers. This is all I know about it. May God bless everyone. It's for sale to the highest bidder. May God bless the highest bidder.