car tuning

new to forza 6. in car tuning i only seem to have the option to adjust tyre pressures. Have read that u should be able to adjust suspension etc but can’t find where u do this

You have to have your car upgraded with adjustable parts in order to tune anything other than tire pressure.

if you go to the upgrade shop and buy the race rollbars and race springs, along with race brakes - this will allow you to make the majority of changes. if you want to adjust the diff settings, buy the race diff.