The car will have a purpose in the upcoming build ;) In short, everything will have a use at some point haha. I have plans for every building!
Character portraits disappearing if very strange. I've never heard of that issue to be honest so it maybe be one of those random/odd issues. Luckily it seems your game is still playing fortunately. But I will keep that issue in mind.
Natasha (very soon) and Talia will both be seeing plenty of action! Thank you for enjoying both ToP and ZR!