Ford Grand Marquis 2010 Automatic Gasoline mileage: 300 KM or more For sale: Grand Marquis 2010. The car's undercarriage has been completely overhauled. The body is original. The vehicle needs a tune-up and the ABS computer, I think, according to the workshops. The entire undercarriage was overhauled two months ago. Mileage: 500,000. Its maintenance is regular. Open to offers.