The 2012 Copa Caixa Stock Car season was the 34th Stock Car Brasil season. It began on March 25 at the Interlagos and ended on December 9 at the same circuit, after twelve rounds. Chevrolet, came to have Chevrolet Sonic as representation of the manufacturer. The category announced changes for 2012 season, excluding the super final and system of dropped. The scoring system was change with the top twenty drivers in each race are awarded points on a scale of 22, 20, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2 and 1.
Teams of Andreas Mattheis switched places. Mattheis passed Red Bull Racing to A.Mattheis Motorsport and after three seasons with Red Bull, WA Matheis had a new sponsor of Royal Dutch Shell and renamed the team to Shell Racing.
Mico's Racing returned after only one race in 2011 with Jacques Villeneuve under Shell V-Power Racing. The team was renamed to Prati-Donaduzzi due sponsor reasons.
Amir Nasr left the championship after eight seasons.
JF started a partner with Nascar Motorsport and was renamed to Comprafacil Nascar JF.
RZ Motorsport returner to his official name, after Crystal leaved the championship.
FTS Competições and Mobil Super Pioneer parted. Mobil group started a partenship with AMG Motorsport renaming the team Mobil Super Pioneer Racing and back to operate two cars. FTS Competições started a partner with BMC Group.
Carlos Alves Competições returned to the championship after four seasons. Having sold his car to Carlos Alves, Scuderia 111 left the series.