Joey Logano (second) and Jason Leffler (fourth) earned top-five finishes for Toyota.
Logano's second-place result marked his second straight runner-up finish and his fourth top-10 finish in five starts in the No. 20 GameStop Toyota.
Camry driver James Buescher earned a career-best seventh-place finish in the No. 32 Dollar General Toyota.
Other Camry drivers in the field today included St. Louis native Mike Wallace (11th) and David Reutimann (25th).
Camry drivers led a total of 84 laps in tonight's 200-lap race. Logano led 42 laps, Reutimann led 33 laps and Leffler led nine laps.
Five Camry drivers currently rank in the top-20 in the unofficial NNS point standings following Gateway. Reutimann (fourth), Busch (seventh), Wallace (eighth), Leffler (11th) and Hamlin (20th) currently rank in the top-20 for Toyota.
JASON LEFFLER, No. 38 Great Clips Toyota Camry, Braun Racing
Did the call on your last pit stop help you to a top-five finish tonight? "Todd Lohse (crew chief) and the guys made a great call doing two tires at the end. He had that planned from the start and it worked out pretty good for us. Our car was pretty good. It's a brand new car and we'll take it to ORP (O'Reilly Raceway Park) and tune on it a little bit. All of the guys at Great Clips and Braun Racing did a great job. I appreciate it. I got a few of my crew members back this week and it's paid dividends. These guys work great as a group and I'm just proud to be driving this thing."
JAMES BUESCHER, No. 32 Dollar General Toyota Camry, Braun Racing
MIKE WALLACE, No. 7 GEICO Toyota Camry, Germain Racing
DAVID REUTIMANN, No. 99 Aaron's Dream Machine Toyota Camry, Michael Waltrip Racing