Knowing about the number of guests who will be joining you in the celebrations is quite important. This will help you to determine the size of the ride that you will need. Like for just your close friends of 6-8 people a stretched limo or a stretched hummer will do. For a larger group of 15-30 people, you can choose from among the different size of party buses. And for a bigger set of people of 30 to 50, you can select a shuttle or coach bus.