You could use a number of suspension and shock settings, but in the end your best bet is to look at real world example's a first
in game I would use vstanced running gear with k-sport slide control, that always worked pretty well for me,
Next I would suggest getting mindeliszz revolutionary handling physics. Beyond that. Half the fun should be setting up your car just right for every track
Added 2 minutes later:
Do you reckon my game would be a lot more stable if I run it just as 2.2.1mwm bb93 and convert mods from le to mwm?