You can use a party bus to get you and your group from one place to another such as going to a concert or game. However, you can also use one as a rolling party. You pick a route and your party is contained on the bus and just stays on the move. I would suggest you get the big bus from Diamond Party Bus in Toronto if you are going to do that. It is the one with the bathroom in it. You know that a bathroom is needed for any sort of party. The nice thing about a party bus is that when you rent one it comes with a professional driver, and it is cleaned to feel like you are the first customer to use it.
I have seen some limo companies that do not take excellent care of their fleet. You really need to rent from a place that takes pride in their fleet of limos whether the limo is a big sedan, SUV, stretch limo or a party bus.