mustangs vs. M3's
You may find that your car will outperform a Mustang on an autocross course, but on the track I can promise you that you will have your ass handed to you every time. I don't care how much money you throw at your car.
You have 2.5 litres, a Mustang has 5.0 litres. Mosport has a straightaway that is a mile long- you do the math.
I watched several bone-stock Mustangs crush E46 M3's at Mosport this weekend.
You're new at this, and telling people that you only made one mistake all weekend is a joke. Everyone makes mistakes, every time out. Over time, you'll see what I mean.
BTW, your car looks great. Now get some seat time.