All eyes will be on Jeff Gordon in 2015 as 4-time champion winds down his stellar career

FILE - In this Nov. 14, 2014, file photo, Jeff Gordon celebrates after qualifying laps for the EcoBoost 400 auto race in Homestead, Fla. Jeff Gordon begins his final year in the iconic No. 24, as he joins an all-star group of drivers attempting to dethrone reigning champion Kevin Harvick. (AP Photo/Darryl Graham, File) (The Associated Press)

FILE - In this Sept. 13, 2014, file photo, NASCAR driver Jeff Gordon (24) drives during final practice for the NASCAR Sprint Cup Series auto race at Chicagoland Speedway in Joliet, Ill. Gordon begins his final year in the iconic No. 24, as he joins an all-star group of drivers attempting to dethrone reigning champion Kevin Harvick. (AP Photo/Paul J. Bergstrom, File) (The Associated Press)

Through driver changes, network shuffles, a new championship format and NASCAR's push to reinvent itself, the one constant for more than two decades has been Jeff Gordon behind the wheel every week of the iconic No. 24.

It's time to buckle up for what's going to be Gordon's final ride. The four-time NASCAR champion will give up full-time driving at the end of 2015.

The title last year went to Kevin Harvick, who put together a brilliant first season with Stewart-Haas Racing. Harvick and crew chief Rodney Childers were the class of the field all year, and there hard work was rewarded with the championship that team co-owner Tony Stewart promised to deliver if they moved to SHR.