All cars were powered by Toyota engines. All Class A cars are equipped with the Dallara F312 chassis, while Copa Class cars are equipped with the Dallara F308 chassis.
An eight-round provisional calendar was revealed on 2 November 2012.[2] This was modified on 7 February 2013,[3] after GT Sport organisers, for practical and technical reasons, moved the Algarve event one week earlier and replaced the Hungaroring event with a race in Jerez, moving it two weeks earlier. All rounds will support the International GT Open series.
^Evans, Ben (14 November 2013). Bradley, Charles (ed.). "Jones to sweat over title decision". Autosport. 214 (7). Haymarket Publications: 47. RP alleged Jones had broken series rules by testing a Formula Renault car at Barcelona last month. West-Tec counter-protested that an RP session away from its designated test venue also broke the rules. Both cases are set to be heard by Spain's ASN, the RACE, in December.