1,000-Lap Challenge around Bristol Motor Speedway on a single tank of fuel

2011 V6 powered Mustang is rated at 31 highway and has a 16-gallon tank. 50-miles from its 496 mile range is a gimme? Question is, how much further can it go with anyone behind the wheel? Since first coming off the assembly line 45 years ago, Mustang has always been known for its sheer power and speed. Now you can add another element to that reputation -- best-in-class fuel economy. One year after the Ford Fusion Hybrid, America's most fuel-efficient mid-sized sedan, successfully eclipsed 1,000 miles on a single tank of gas, Ford will put its new 2011 Mustang V-6.