Most of us have access to a car these days. So the obvious first choice for a funeral is your own car, or another family members. Never feel pressured into using a limousine, or other hired vehicle. The only thing we ask you to consider is that it will be an emotional day and can be difficult to focus and follow in a cortege. If you think you might find it difficult ask another family member, or use one of the hired options.
The day is about you and the family, so you can use whatever vehicle you like to make the day more personal to you. Whether that means hiring a big bus, or even an alternative stretch limousine. It's up to you. For shorter distances, usually in villages and smaller towns you can always walk.