I stand to my sentence: they are the best way to reduce the environmental impact of cars, as you have cars. If you get rid of cars, that is of course even less

I stand to my sentence: they are the best way to reduce the environmental impact of cars, as you have cars. If you get rid of cars, that is of course even less environmental impact. I am a big supporter of public transit - personally I always use public transit to go to downtown (Munich, Germany), as it is much more convenient and even cheaper.