31 entries have been received so far by the organisers from crews from 5 nationalities. Most of the cars are from the RC4 class - 9, while there are 7 cars each in classes RC2 and RC5.
40. Monbat Rally Sliven is the second round of the Bulgarian Rally Championship as well as the third round of the FIA Balkan Rally Trophy and will be held from 10 to 12 June 2021.