I know the american thing to do is "give it to your child when he is 16" but i would never forgive myself putting him in a car w/ a 6.1 or a 6.4 hemi and something happening. I don't think a beast of machine like this is viable for a child. but i think i will keep it at LEAST 10 years and i would sell it if someone payed me more than i paid for it wanting it as a "collectors" ^^