Bonding with my son over Mopars

I have 3 daughters, and a newborn son. The girls have no interest in my cars, i am hoping my son will. If he shows more than just a passing interest, and really appreciates them, maybe when he is older we can look for a used new challenger for him and i to rebuild. I feel that the cars i have are his birthright if he appreciates them, otherwise when i get too old to mess with them i will just sell em off and take my wonderful wife on some vacations LOL