DaveB wrote:
Anyone know what's the fastest single engine prop aircraft that could
be used for corporate use? Lets say 6-8 passengers.

Thanks in advance
Daveb

We use PC12's, but that's a little more room than you're asking for -
and a turboprop. I have a friend who swears by the Piper Meridian - the
piston version is the Mirage.

Here's an article on six seat pistons..

http://www.planeandpilotmag.com/cont.../showdown.html

I guess none of those are "fast" but I'm not sure anything in that class is.