2003 Pepsi 400

Contested over 160 laps on the 2.5-mile (4.0 km) asphalt superspeedway, it was the seventeenth race of the 2003 NASCAR Winston Cup Series season.

[1] The standard track at Daytona is a four-turn superspeedway that is 2.5 miles (4.0 km) long.

The final 81 laps (the entire second half) were run under green, setting up a finish where fuel strategy was going to be key to deciding the winner.

Rookie Greg Biffle won the event for his first Cup Series victory.

His win was an upset after Bobby Labonte ran out of gas in the final laps, likewise, Kevin Harvick led the most laps at 54, but also failed to win.