Mother's finishing products did one several years ago, too, so yes, I know it can be done. It was a good deal of work they did to the PT Cruiser, the major thing was they did it with a manual transmission, something that at the time was never installed with a 3.8 and required a lot of Megasquirt work to allow it street legal in California. I am more than positive it has been done several times, and with an auto, not a problem, AND outside California and its smog rules. As far as crash test, not an issue, any and everyone concerned about safety would install a front nose rollbar within the front sheetmetal to the firewall. Might be tight, but anything is possible with enough work.