What Is The Best Car You've Ever Rode In On The Street?

"Best" is a pretty wide open description, but keeping in the spirit of the OP which seems to be built street car-

The first "street machine" type car I ever rode in was around 1980 at the age of 12 or 13.

It was a 71 boss 351 4 speed in the iconic yellow with black hood paint. The owner was a friend's dad's friend and he took that kid and me to the store in it.
He explained the work that was done to it but I wasn't paying attention. I was too busy trying to pull myself off of the seat from the G force.