• RatBaG #134212
    The Ladder - How todays drivers got to F1

    GK - Go-karts (ages of competition shown below).
    FF - Formula Ford.
    FR - Formula Renault 2.0 (unless specified as 1.6 or 3.5).
    F3K - F3000.
    NIP - Formula Nippon.
    Lightning - First F1 test.


    http://forums.autosport.com/index.php?showtopic=180512