Bigger car?

3rd baby was NOT PLANNED by any means. We had just upgraded my car last year. I have a 2018 RDX I absolutely love it. I have a 6 year old in a booster and a 3 year old in a carseat and then new baby will also be in a carseat. We have looked at bigger cars but I just haven’t fallen in love with anything plus prices on a new car are ridiculous. Any one fit 3 carseat in a 5 seater car!?