A 2011 V-6 Ford Mustang turned in average fuel economy of 48.5 mpg during the Mustang 1,000 Lap Challenge at Bristol Motor Speedway; the average speed was 43.9 mph.

The Mustang 1,000 Lap Challenge was designed to demonstrate that a stock production Mustang V-6 could run 1,000 laps and 533 miles on a single of tank of fuel. With the aid of fuel efficient driving techniques by Ford engineers, the Mustang broke well past the target, delivering 1,457 laps (776.5 miles) on the single tank.

The Mustang is powered by a lightweight, all-aluminum 305 hp (227 kW) 3.7-liter dual-overhead-cam (DOHC) V-6 engine with twin independent variable camshaft timing (Ti-VCT), with an EPA fuel economy rating of 31 mpg highway.

The Challenge team, which included NASCAR star David Ragan and four Ford Mustang engineers, completed the challenge in 17 hours and 40 minutes.

A team of Ford engineers prepared for the challenge by implementing fuel efficient driving tips like minimizing the use of air conditioning, steady and consistent driving, avoiding sudden stops/starts and by keeping the RPMs low.