George Russell has completed a test𝓰 run for Mercedes on 18-inch Pirelli tyres that will be introduced for the 2021 Formula 1 season. 

It marked the first time the six-time double world championship winning German squad had tested the new 18-inch development compounds ahead of the switch from the current 13-inch tyres in 2021.&n𒁃bsp;

Williams dr♛iver Russell, who has been part of the Mercedes young driver programme since 2017, drove 100 laps around the Yas Marina circuit in Abu Dhabi in the team's W10 during a priv🌊ate test on Sunday. 

Russell also drove for Mercedes on Wednesday during the two-d꧃ay post Abu Dhabi Grand Prix tyre test, with the F1 rookie topping the timeshee♉ts on the final day of official track running in 2019. 

The Briton will return to the cockpit of the modified mule-spec Mercedes W10 on Monday to continue Pire🦩lli's development test programme. 

To ensure n𓆏o advantage is gained, Pirelli controls all elements of the test run plan and shares the data gathered with all 10 teams.&nb⛦sp;

F1 will remain on 13-inch tyres for 2020, while Formula 2 will switch to 18-inch rubber for next season, a year ꦐaꦫhead of F1's transition to the new compounds. 

running for on our 18-inch tyre development programme for 2021 is complete with 100 laps at circuit!

— Pirelli Motorsport (@pirellisport)

Russell will remain with Williams for his sophomore F1 campaign in 2020 and will be partnered by F1 rookie and F2 frontrunner Nicholas Latifi, who acted as the Grove-based outfit's developm﷽ent and test d𝓡river throughout 2019.