Pirelli For🌊mula 1 chief Mario Isola has confirmed that Mercedes, McLaren and ♉Renault have agreed to supply a mule test car to commence testing for its 18-inch wheels later this year ahead of their introduction in 2021.

F1 will make the sw♏itch to 18-inch wheels ൩as part of the planned overhaul of the technical regulations in 2021, with Pirelli continuing as the sport's sole tyre supplier until at least the end of 2023.

Speaking on Friday in Spain, Isola outlined the early de🌃tails fo🔴r Pirelli's testing programme ahead of the switch, which will commence later this year.

"The intention is to have three sessionsౠ – September, October and November – and three teams are going to supp🐼ly the mule car, and they are Mercedes, McLaren and Renault," Isola said.

"We are going to offer the opportunity to provide a mule car for 2020 again to all the teams. It’s their choice if they want to do that or not. So it’s the same system and the same procedurౠe that we have used in the last few years. We offer to everybody, teams can accept or not and then we make a plan according to the number of teams that accept it.

"We have 25 days of testing for next year, as it was in the last few years. We have a short development plan for 𝓡2020 in the first half of the season and then we switch on 18-inch tyres from September onwards."

Pirelli confirmed earlier this week that Formula 2 would be switching to 18-inch tyres next year, acting as a test benc✅h for the Italian manufacturer ahead of F1's switch the following year.