Pirelli is aiming to get their 18-inch 2021 tyres on track six times in 2019. The new 18-inch wheels form part of the major regulation overhaul set to hit the sport in 2021.

The Italian manufacturer confirmed they will begin testing with special 'mule cars' earlier this month. Mario Isola has confirmed himself that he wants to begin testing in the second half of the season.

“It’s very important [to start testing in 2019] considering the level of performance of the cars and we need to be sure we are supplying a good product.

“Starting in the second half of the year gives us the opportunity to use the winter time to review the test to make changes if it is necessary, if for example [we need] to change the profile of the tyre, and to make new moulds, it takes time," Isola said in an interview on Motorsport week.

Pirelli, who have been F1's sole tyre supplier since 2011, will continue their testing for the 2020 season this season and then use next season's 25-day allocation to be fully focused on 2021.