Liberty Mutual will replace your new car by giving you the exact purchase price (including tax, title, license) of your car if it is totaled within 1 year from the purchase date. Almost got to use that one earlier this year, but the car ended up being about 1k from totaled. It is nice to know that you will get what you paid for the vehicle so you can replace it with a like vehicle instead of getting the depriciated value and not being able to purchase a car like your old one.
However, in order to get this with Liberty Mutual, you must carry full coverage, and you must buy a new vehicle (demos, rentals are excluded).