Seeing this screenshot made me angry at PD for the total lack of categorization and tagging in the game. If they gave us the possibility to use our own self-defined tags and folders for our own garage, it would increase QoL by a lot. Just think of people who create their own racing series and then have to scroll through the entire garage to add them! The other day, I did a "F1 swapped brick race" where I put the Espace, the StepWgn, the Alphard LFA (ok, not a proper F1 but still) and had to scroll through the garage to add each of those...
At least, add a tag to ngine swapped cars so they are easily findable! It is clear they are internally flagged in some way, since engine name is in green and they are forbidden from entry in sport mode.