I am certain that you will suceed in your Cobra dream. You have already demonstrated more intelligance than most new people to this forum by using the search function
My wife supported the purchase but did not 'get it' until the car was here and she took a ride.
She had never seen one much less riden in one so it had little appeal to her. So get her in one! You should see the expression on her face the first time she got in, buckled up and we prepared to leave. Like a child at an amusement park. She is a person that really could give a $hit about cars. Before she met me, zero interest in cars. As time when on, passing interest. Since we got the Cobra, interest increased two fold.
Be sure whomever she rides with demonstrates the 'softer' side of the car. You know, the open road, the sun, the wind, the reaction of others. I had the car for months before I stood on it with my wife. That may have been to soon.
'Pay it forward' also seems to work well with the wife. If she is getting what she wants, she would probably feel bad denying you!
You know her best. I an tell you, having a wife that supports the whole experience sure does make life more pleasent.
Rick