text: I don't know what a main dealer is.  But I sold cars for a few years and it's a tough raquet.  Everyone has gross misconceptions about the industry.  Most people wash out quickly.  The huge advantage is that if you learn the trade (and you'll know right away if it's for you)  you can ALWAYS get a job.\nNo matter what anyone posts here I suggest you try it.  You'll never know otherwise.