It’s 100% that Renault UK has pulled the plug so they will not be a supporting class after next year as the 3 year contract with TOCA finishes next year.
The Gen4 race car is eligible to race in the Michelin Clio Seires next year where the Gen3 car has been racing since 2014.
They both will be using Michelin Pilot Sport 2 tyres, which also has been opened to the Gen2 car but they will be on Toyo 888.
Running a Mini in its championship costs just the same as a Clio in its championship and you will need £10k per round to race in either, racing at top level is not cheap.