I always have random cars trying to egg me on while I drive my Mustang.
However, if I see a car I like (Camaro's, Challengers, Vettes, etc.) I wave/nod and throw a friendly rev.
I think the hype of the ZL1 has caught the attention of many other cars, not just Mustangs. Personally, I'd love to run a ZL1 to see how well I do or if I can even beat one/keep up with one. Same goes for a GT500, Vette or any other higher end cars that come from the Factory fast as all hell.
I do love me some Ashen Grey ZL1's,

ROOL: