I just bought an 86 rx7 automatic. I really dont know much about these cars. Is there anything i can do to tell if its going to be worth putting anything into it. So far my only problems with the car are

• sunroof dosent work
• driver side door lock cant be locked or unlocked from outside
• car starts shaking if idle and not moving for awhile in drive and then stalls
• paint worn off
• and when i start it i get a few puffs of white smoke from the exhaust

i paid $700 cash for the car. so is there anything else i can tell you guys b/c you seem knowledgeable about this stuff.

thanks

don