I only have like 78,000km's on my Mustang, I believe that orignal.
My dad's t-bird has almost 300,000km's (180,000 miles) and she is still running strong. And he beats her real good but she loves it. That thing can barry the neddle on the highway with no problem at all. I know he replaced the head gaskets a few years ago, but other then that it's been fine. Ohhh... he broke the spedo before too.
It goes to 200km/h and it hit the bottom, bent and snapped. lol He was pretty proud of doing it too.
-Sam.