Sticky wrote I HAVE drag raced and M3. Apparently timeslips aren't a valid way to tell performance of either car? At the same time, same place? WTF? So because you have sat in a 911 that somehow gives you experience as to how it matches up to the M3 in a drag race? hahah!
I'll give you the BENEFIT of the lower figure, and maybe you need to check what 3549 - 3131 is. Don't need a community college professor to tell me it isn't 600 pounds and neither are the figures you went by
First off the 997S is rated 0-60 at
4.6 seconds.
The E92 M3 is rated 0-60 at
4.4-4.5 seconds.
There isn't a huge gap in performance on the straights. Just because you show up at a track, and race some other strip monkey doesn't mean your "few runs" against that 997S determine the performance of both cars. That's just driver difference. I'm sure tons of people could destroy you in a 997S simply because they have more skill. The cars are evenly matched on the straights.
As for your second point, I think you should sell your M3 to go back and take a few entry level english classes at community college because you don't know what UNLADEN weight seems to mean. Here, I'll educate you free of charge:
http://www.motorera.com/dictionary/UN.HTM
You're comparing the 997S unladen weight (fluids) to the M3 weight without fluids. It can even include the weight of the driver in some places.
So let's explore my original claim:
NewSong wrote  Umm, it weighs 500-600 pounds less than the M3.
M3 E92 Unladen weight:
3704
From BMW Website:
2007 997S Unladen weight:
3130
From AutoEvolution:
So let's do the math again.
3704 - 3130 =
574 lbs difference! Funny how that pretty much matches up AGAIN with what I said previously.
Or are you going to drive your M3 without, fuel and oil?
Now you have two feet in your mouth. I'll help you remove them if you just admit you're a moron, and kill yourself.