$/car for triple coat

I just finished up a 55gal drum of triple coat and figured out my true cost per car and i was at $.04... i run all 3 colors at the same dilution so $.12 for all 3.. Just wondered how it compares to others.

Are you talking about Tri-Foam wax or Tri-Foam detergent? With your avitar, I assume you are applying in a tunnel through an arch? Is this on an average car lenght?