Talk:Hot Wheels Rip Rod™/@comment-2602:306:C5B2:53E0:F44B:79C9:6DC4:CB8A-20171217041313/@comment-33894355-20171217144405

It is explained at performance stats rip rod forum. This link is also good.

http://asphalt.wikia.com/wiki/Thread:56977

Regards