where can i find the lfs file

i havent played lfs for a good few years and have come back on it to find i seem to have one of my cars modded
and when i go to play online i get JOOS CAR in red come up and something like syncronization failed ?
helllpp!!

ta

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Thanks, Top Man!

How do i make it so that more than one person can start at a time? my layout it for a normal race track, just added a few things into it, but only one can start at a time, Help?