Regarding the Clio Rally5, I've done a small ride in one. The car is FAST. Seemed a lot faster than the old Fiesta R2T we are driving with (first Turbo version, not latest). Certainly in the first 3 gears. The car has a lot of torque in a wide rev range.
Suspension seems a bit hard, it's made for French asphalt and can't be changed (fixed dampers, only 1 type of springs).
I think it's about 1s/km slower than the Rally4 on tarmac.
More news once we actually done a rally with it

Renault was certainly working on the plans for a Rally3 this summer.