Ford isn’t going to let its rivals forget about the prowess of its new 2011 Mustang when it comes to fuel efficiency, which in V-6 guise is currently the only production vehicle on the planet with more than 300 horsepower and 30+ mpg fuel economy.

Earlier this month the 305 horsepower 2011 Ford Mustang V-6 entered the record books thanks to its EPA-rated fuel economy of 19 mpg in the city and 31 mpg on the highway when equipped with the available six-speed automatic transmission--and to really rub it into the faces of its rivals, Ford has now announced the Bristol Motor Speedway 1,000-Lap Challenge.

The challenge will see Ford attempt to cover 1,000 laps of the half-mile (0.533 miles to be exact) Bristol Motor Speedway in Tennessee with a just a single tank of gas in the Mustang V-6.

Last year Ford attempted a similar feat with its Fusion Hybrid, which drove a total of 1,445 miles (an average of 81.5 mpg) on a single tank of gas around the Washington, D.C. area.

The latest challenge will take place on June 23, and fans can get in on the action by correctly guessing the number of laps the car completes on a tank of gas at The prize is a, you guessed it, 2011 Ford Mustang V-6.