NASCAR America analysts Steve Letarte and Ray Evernham discuss who test sessions - like the one Tuesday at Chicagoland Speedway - are really for.
Among those testing at Chicagoland ahead of the Sept. 11 race:
Jamie McMurray (Chip Ganassi (Racing)
Kevin Harvick (Stewart-Haas Racing)
Trevor Bayne (Roush Fenway Racing)
Kyle Busch (Joe Gibbs Racing)
Ryan Blaney (Wood Brothers Racing)
Joey Logano (Team Penske)
David Ragan (BK Racing)
Ryan Newman (Richard Childress Racing)
Chris Buescher (Front Row Motorsports)
Brian Scott (Richard Petty Motorsports)
Jimmie Johnson (Hendrick Motorsports)
Michael McDowell (Circle Sport - Leavine Family Racing)