Transportation question....

I am going to get a limo or a Rolls for myself and FH, and of course a limo for the bridal party, but I just thought - is it proper 'etiquette' if I got a bus for the entire bridal party, my parents, FH parents and my grandma? Or should I get 3 cars, - one for FH and I, one for BP and 1 for parents? Trying to get the cheapest option but I want to do it the right way. I would like my family and his family not to have to worry about driving that day. Thanks

that might work...do you know if that would be expensive? I know the limos are usually around $300-$350 for 3 hours......maybe I will check on the vendor board