To answer your original question, unfortunately, a V6 mustang would crush a stock 1.8T, my kia spectra is a close race to a stock 1.8T...
[align=left] [/align]

 

ha ha ha ha .... did anyone see top gear review last wwek on kia daewoo etc ha ha

 

mnaudi thats one of the funniest things ive ever heard. ya i raced with a friend and i was able to start in 2nd while he in 3rd. and i beat him and he got upset and made me start in 3rd... i had him but this lady in front of us a ways swerved off the road and into the road again so we ended with me ahead. but he wants to race again and thinks he will beat me. he also makes up excuses as to why i beat him last time

 

what were you drivin in this race / s

 

http://www.engine-power.com/ford/2005_mustang_v6.html

I wouldnt say crush.. but I guess they'd win.. Unless your very good at driving. In the end he has a girly piece of trash and your in an Audi. But if your chipped + exhausted your gonna hand it to his *** in your luxury family car

 

Chip and exhaust would probably run you side to side with a V6 stang, maybe pull on him a little bit, and yeah, I hate V6 mustangs too, but stock, like I said before, my kia spectra would give a 1.8T a run for it's money...But i'd much rather have the A4 anyways : )
[align=left] [/align]

 

Interesting facts:
Mustang v-6
4.0 L
202 hp @ 5250 RPM
235 lbs-ft @ 3500 RPM

A4 v-6
3.0L
220 horsepower at 6300 rpm
221 pounds-feet of torque

You'd think they could do more with that extra liter.