Can you believe dude???
To drive one Porsche is to disagree with the Physics... am I right?
That Porsche is obviously modded. Assuming the speedo isn't off, that Porsche travelled at more than 210mph, faster than the Carrera GT. The M3 looks like an E36, which isn't too impressive by today's standards and the M5 looks like the current gen E60, which is quite impressive. Not sure how the option goes in Korea, but in Europe, you can have the governor removed from factory (not available in U.S.), which will allow the M5 to hit around 202mph.
Edit: I still can't confirm the M3, but looks like a E36, but the M5 I know for sure is the E60 due to the exhaust note.