options in mind

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 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?