Hmm. A bit embarrassed, but I'm not getting an error- I just don't know if I should rename the cars and replace the default ones, or if they're add ons and how to install them. So sorry for doing this but I couldn't find any info online.
My ELS.ini file has numbers instead of keys. (e.g. Toggle_LSTG = 74) Can I just change these numbers to the keys I want/are the numbers somehow associated with the keys?