It definately goes both ways. There's a lot dumb axx Domestic Guys but just as many Import geeks.
I pulled up next to a couple young guys (20 ish) in a Lexus GS 400 at a red light. They had their window rolled down and I could hear them laughing and making statements about how they could easily smoke my POS. I gave them a little rev (which is pretty darn loud and mean sounding with my headers). I also took a $ 50.00 dollar bill out of my wallet and said, "lets do it right now for 50.00 bucks."
The passenger mouth opened all the way up and looked over at the driver. The driver gave a fake laugh and said, 'I could easily beat that thing." I replied by saying,' OK then lets go.'
The driver just kept laughing (fake) and saying crap to his buddy.
He tried to jump the light by leaving right before it turned green. He did get a slight jump on me but I quickly reeled him in and went blasting by him in 2nd gear. I gave them a nice smile and wave as I went by.
On the other side of the coin, I had a similar experience in my Stage 4 WRX. Two guys in an LS1 z28 told me my WRX was slow. They said guys buy all these parts trying to make them fast but they are still slow. I ended up kicking his but in a nice race from a dead stop to about 110mph. After the race they would stop looking over at me ( in shock)