Guys,seems like this is really popular here in the US,I'm thinking if I will join or not coz I'm not sure if really legit,since there's some review that negative but most positive,so u guys hear about this ? "MOTOR CLUB OF AMERICA"is there anyone of you joined on MCA??can you tell me all about it?then btw,why some of them they said you need to pay $20 but some said $40 starting??thanks 
Try it then you will see if it's legit or not.
I recommend AAA. American Automobile Association. You can get car and home insurance, and lots of discounts. I've never heard of MCA. Free towing (with restrictions), and other helpful things if your car ever breaks down. I think its like $50 a year.
Did u joined to AAA?how does it work ?
I've been a member of AAA for over 10 years. I'm not sure where you're located but http://www.aaa.com/ is where you want to start.
Do I also need to be pay starting?
I don't understand what you're asking. Its $50 a year.
Ohh!!coz in MCA they said before you can proceed to traning you need to pay $40 .
"Proceed to training"? Are you trying to work for them, or get roadside assistance? If you're trying to get roadside assistance, you need to pay $50 first, and then can use them.