yes i have actually seen a show on WBCC (in US) that showed a husband and wife who bought two civics with CNG. The good news is that they didnt had to go buy the cylinders or fill up at the CNG station. The CNG gas was located in their garage and so they would fill up the car over nite (took about 3 hours) a the next morinng they were ready to go. But im sure that most ppl in US wont like this idea cuz they are used to those gas guzzling beasts.