later on soon when i get my permit i want to buy a car will only be able to spend like 500-1k on down payment n i want a grand prix GTP, my bro got a base 07 grand prix and learned alot about the Pontiac's and basically i love cars. i want to get a GTP because its fast i can beat like a new honda civic SI with like a 2002 GTP stock, but i want to know is it ok to get one with 100k miles or should i get ones thats less? well ya one less is good but they cost alot on the cheapest ones r like 90-120k miles. is it ok if is 100k or less and does it still have lots of power to go fast good milage and everything? i want to know and i love to have that as my first car. also if i keep it anyone how i can increase the MPH from 120 standard to like 160?