Each one of your logic branches is comparing the variable $what to another variable named after a make of car. ie ($what === $honda) Where and what are you setting all these different variables to before the logic begins? Seems like it would be easier to write ($what === "honda") or use a switch statement like everyone recommends.
Also on printing out the variable, you don't need quotes.
Just print($print) and why not print($what) to see exactly what it is.