The series currently consists of 12 two-day events driven on closed circuits with mixed surface (mostly asphalt and gravel).

Each event consists of:[2] During the first FIA World Rallycross Championship season in 2014, two classes were run, Supercar (later RX1) and the supporting RX Lites series (later RX2).

[10] The Projekt E spec electric rallycross car was revealed in September 2019 at the Riga Motor Museum in Latvia.

[16][17][18]: 5/41 [19][20][21][22] The engines run 50 psi (3.4 bar) of boost pressure,[23][24] and completely unrestricted, are capable of making about 1,000 hp (750 kW) and 1,100 lb⋅ft (1,500 N⋅m) of torque.

[33][34] The second-tier RX2 Supercar Lites division uses a 16-valve, 2.4 L, naturally aspirated, Ford Duratec inline-four engine, making between 310–320 hp (230–240 kW) and 300 N⋅m (220 lbf⋅ft) of torque.

[37][38][39] The RX3 (formerly Super 1600) class uses 1.6 L (1600 cc), naturally aspirated, four-cylinder engines; generating between 220–250 hp (160–190 kW) and between 190–200 N⋅m (140–150 lbf⋅ft) of torque.