Not only has Johnson shown speed .
Not only has Johnson so has Elliott ( who had the second - fastest 10 - lap average in final practice ) and Alex Bowman ( who had the sixth - fastest single lap in opening practice Friday ) .
Not only has Johnson shown speed , but so has Elliott ( who had the second - fastest 10 - lap average in final practice ) and Alex Bowman ( who had the sixth - fastest single lap in opening practice Friday ) .