As long as you like.
If you are a fan of cars and love old cars you will love this place. Quickest is 45 mins. The sinkhole exhibit is nice as are some classic Corvette cars.
1 to 2 hours average. If you read everything and movies maybe up to 4 hours
As much as you want. Within reason.
We took the guided tour, went back and watched some of the videos. We were there about 3 hours.
I could spend all day. Why, to all the exhibits interest me. A very cool place if you're a Corvette fan
About an 1 to 2 hours depending on what you do and see
I'd say between 45 min to 2 hours, just depends on how long you enjoy the exhibits.
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