When I originally purchased my cobra kit, I was going to build it and then we were going to get a matching kit for my wife. Having read a number of instances and watched the u-tube experience that some people had had, my wife got me a Racing Adventures driving class as gift. She chose Racing Adventures specifically because they use cobras (as well as vets) for the classes and they have sessions thruout the country with a couple of locations within driving distance from where we live.
When we got there they still had openings so I signed her up as well. The closest thing that she had ever driven in the way of a high performance car at that time was my T-bird SC. Inspite of that and that she is partially blind in one eye, she was able to get thru all of the preliminary training and the open track time just fine. The track time made us both a lot comfortable that we could safely handle the cobra.
Jump ahead a few years, I'm still in the process of building the cobra and the wife is too impatient for me to finish mine and build her's so we purchaseda Shelby GT. Not the most potent machine but still a lot of fun to drive. We have added a few more to the stable including a GT500 KR with 540 HP and she is able to handle them just fine as long as we keep her away from curbs.
Bottom line is, if you have both done your homework and she really has a good idea of what living with a cobra is like, spend a day and a few extra dollars to really learn how to drive the cobra. Not only will she (and you if you decide to take the course together) improve her driving skills but will be able to verify that a cobra is what she wants.