Better to ask for forgiveness than beg for permission. Buy the car if it feels right.
It was easy to convince Mrs. Phat Hippy to get one when I explained I would be getting off the motorcycles! She always worried about the weather and the interstate on the back of my Harley, or the Gold Wing for that matter. Now She keeps looking at the speedo and shaking Her head... More enjoyment of any vehicle I've ever owned.