A former McLaren Technical Executive believes Liam Lawson has become 'un-droppable'.  

The Kiwi Formula 1 racer showed another strong result yesterday, as he was promoted to seventh at the Brazilian Grand Prix after Charles Leclerc was hit with post-race penalty. 

It's Lawson's fifth straight points finish as Racing Bulls keeps him waiting on a decision about next year. 

Mark Barnett told Mike Hosking the feeder team was tasked with standing on its own two feet, both financially and from a performance perspective, and without a reference or lead driver, that's not possible to do. 

He says Lawson's just gotten better and better this year, and has become that benchmark. 

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