Mini cooper and size!?

I want to buy one of those Old mini coppers but Im 1.90 cm(6'3) and 90 kgs(nearly 200 pounds) all my friends are telling me not to buy one but I really want one of them ,do you think Its gonna be a problem for me ? expecially for my legs to fit the car ?? I will go and sit in a mini soon but I want to have an idea before that.