The 2012 champ has fizzled in the last nine races (average finish: 15.3).
Other talent: Has a custom 150-gallon tank that was featured on the National Geographic Channel show Fish Tank Kings.
The Penske star—who has had the points lead after the penultimate race three times but still hasn't won a title—won Sunday's season opener in St. Pete.
Other talent: Did voiceover work in 2013's Turbo.
The defending Indy 500 champ slides into a coveted seat with Target Chip Ganassi Racing.
Other talent: After his dad died when Tony was 13, he gave Rollerblading lessons to help support his family.
JUAN PABLO MONTOYA
After a rough spell driving for Ganassi in NASCAR (two wins in 253 starts), the former CART champ joins rival Team Penske.
Other talent: The Colombian is an avid flier of remote-control planes.
The 2012 rookie of the year won twice and finished third overall as a sophomore.
Other talent: Does a fine impersonation of Jean Girard, Sacha Baron Cohen's character in Talladega Nights.
MIKE MCGINNIS/GETTY IMAGES (HUNTER-REAY)
CHRIS TROTMAN/GETTY IMAGES (POWER)
BRIAN CLEARY/GETTY IMAGES (KANAAN)
J PAT CARTER/AP (MONTOYA)
CHRIS O'MEARA/AP (PAGENAUD)