Yvan Muller secured the Drivers' Championship title in Japan, with two events remaining in the season. Honda won the Manufacturers' Championship. Chevrolet was the defending manufacturers' champion, but it did not support a team in 2013, and thus was unable to defend its title.
James Nash won the Yokohama Drivers' Trophy for independent entries and RML won the Yokohama Teams' Trophy. The Lukoil Racing Team was the defending Yokohama Teams' Trophy winner, but was unable to defend its title as Lukoil closed their own team to support manufacturer Lada Sport team in 2013.
After competing in two rounds in 2012, Russian car manufacturer Lada announced its intentions to contest races in 2013 with the Lada Granta WTCC, contesting a full season for the first time since 2009. On 15 November it was announced that the marque would enter a two car team for 2013. However, they later announced that they would enter a third car later of the season.
The Race of Brazil was dropped before the start of the season, but was later reinstated. It was then dropped from the calendar again when the Argentine round was confirmed.
An additional thirteenth round of the championship was added before the start of the season. In May 2013, it was confirmed the Race of Argentina made its championship debut at the Autódromo Termas de Río Hondo. The race in Argentina was confirmed in June, replacing the Brazilian round.
Eligibility for the Yokohama Drivers' Trophy was decided by Eurosport Events, taking into consideration the Team's CV and records, the Driver's CV and records and the car's technical characteristics.
All the teams taking part in the championship were eligible to score points towards the Yokohama Teams' Trophy, with the exception of teams which incorporated a car manufacturer's name in the team's name.
^Yvan Muller was one of twelve drivers given a grid penalty for unsporting behaviour during qualifying for the first race in Austria and started from thirteenth place.Michel Nykjær started the race from pole as a result, but Muller was entitled to keep the five championship points for pole position.
^ abcHudson, Neil (3 June 2012). "James Thompson takes 11th on Lada's last appearance". TouringCarTimes. Mediaempire Stockholm AB. Archived from the original on 5 January 2013. Retrieved 20 July 2012. The Lada programme this year consists of just two appearances in Hungary and Portugal, and the team will now go on to work on the car ahead of a potential full assault on the 2013 World Touring Car Championship.
^ abHudson, Neil (15 November 2012). "Aleksei Dudukalo set for Lada switch in 2013". TouringCarTimes. Mediaempire Stockholm AB. Archived from the original on 11 January 2013. Retrieved 16 November 2012. Russian driver Aleksei Dudukalo has indicated that he expects to be racing for Lada in the 2013 season in a two car team alongside double British Touring Car champion James Thompson, with backing from LUKOIL, as was rumoured earlier in the year.