car picks

ok so heres my choices i think ive narrowed it down to. A 1980-89 camaro or a 1980-89 mustang. Now if theres any other car (http://www.carforums.net/showthread.php?t=61485#) out there that look similar to these then plz tell me. I am 6' 3" and so i would be looking for one that maybe has more interior room. I also need to convince my dad to buy one and the only way i can do that is with reliability. Which one will be more reliable and have a lesser chance of breaking down? It would also be my daily college driving vehicle so if one is more friendly for that. I have 20k to make it my own, such as getting seats i like and radio and stuff like that so i guess ether could be more comforatable idk.