Me too, you get given such shoddy cars in Beginner, I didn't see ant point keeping cars that I knew I would never want to use, so I sold all the MX5s and stuff, including the Acura RSX, Camaro SS, CRX, Daihatsu Mira, and just kept the cars that had some kind of interest to me, like the EVOs and the Cooper.
Also, I sold the TT that I won in the TT cup because obviously I already had one, likewise the Yaris and the SLK230.
Bet that opens a can of worms.