Why is progressive insurance quotes so cheap?

Hi,

I'm online going from different car insurance companies to get quotes for my car. Went to Amica, Geico, Progressive, etc. and have found that the Progressive quote is less than half of what the other compaines are quoting me.What gives? Is it a trick? A trap? What am I missing?


Please help.

I didn't find the right solution from the Internet.

References:-
Why is progressive insurance quotes so cheap? | Ars OpenForum
motion graphics video quote

Thanks!