Mmm.. I used to race around my little town in Sierra Vista without much modding other than a K&N Air Filter and my prototype performance clutch.
Once, I beat a 370Z. I always take off from lights at a decent little clip, and I look over and notice that this 370 is starting to pull up fast beside me.. So, what do I do? I drop it down a couple gears and press that pedal down! I start slowly pulling away (guy didn't have any clue how to shift, obviously), and left him in my dust at about 85 in a 45.. Which is when my girlfriend at the time looks over her shoulder and yells "Cops!" Well... first one pulled him over, and the second one.... well.... let's just say that I didn't get a ticket that day.
Another time I raced a Audi TT on the way up to Tucson, but I kept leaving him in the dust because he didn't want to go past 135 mph.. I was just tooling up the road on the way to Tucson, and I look in my mirror and see him start to pass cars two cars behind me and start riding up my tailpipes.. So, of course, I decide it'd be fun to play around! Drop it down a gear and press down that pedal again (if you haven't noticed, tis my favorite thing to do with my Crossfire.. =D). We were neck and neck for a little bit, till again, I out-shifted him and got to the on-ramp ahead of him. From there, it was smooth sailing. I'd slow down to let him catch up, and then just beast him again. Wasn't really a competition, honestly.

And this one was -without- my custom clutch.
So yes, in an '05 N/A with no modding, I've done quite well at beating 'kiddos' around the block. But then again, I like to push my cars to their absolute limit, and not leave anything hanging.