Originally Posted by ProfessorDave

I did not know I was supposed to calculate my dollar-to-grin factor. I have not kept track of my grins.

Does anyone know where I could find a formula to calculate this, going back to last July?

Oh, and for the record Motor Trend, rocket speeds are somewhere in the 20,000 - 40,000 mph. So not even a GT-R, Viper, Steve's Mustang or a P-car would be "a rocket".