As such a special event is not taking place on daily basis, you should definitely consider making it somehow remarkable. What would really take it to the whole new level is a one hour exclusive limo tour, during which you are about to feel just right. Give the future groom a chance not to feel like on any other day and better book this fancy private transfer.
Whether you just want to be wandering around the city, or you want to use it to get somewhere specific, both is possible and it is just up to you what the final destination will be. Last but not least, even though the minimum number of people is group, please be aware of the fact, that such a car can handle a maximum of 8 people at once, therefore if you are bigger group, don’t hesitate and take the opportunity of booking more limos.