It's funny you should ask about an original owner interview, as I'm planning one now. Here are a few of the questions I'm going to ask:
>What factors made you decide to buy that kind of car?
>What options did you choose and why were they important to you?
>Describe any changes you made to the car through it's life and why.
>Describe the days events when you picked up the car.
>What was the first driving experience like?
>Describe some of the times when you "played" with it on the street.
>Did you even take it down the track, and if so what were the times? Did you save any time slips?
That's just a few ideas for you.
Verne