Talk:McLaren M14A (Championship)/@comment-34554399-20190223121154/@comment-31458611-20190225142416

Answer from a passer-by: the X above stands for an unknown value, 0 to 10 in this case.

The M14A, as stated elsewhere, already handles fine at stock, so when improving top speed the tuning should prioritize acceleration (drivetrain) over handling (tires).