Campervans, caravans and trailer tents are not allowed into the main festival site. However, the purchase of a campervan ticket in addition to the main ticket allows access to fields just outside the boundary fence; and the cost includes access for the campervan or towing vehicle and the caravan; the car, or other vehicle used to tow the caravan, may be parked alongside it but sleeping is only authorised in the campervan/caravan and connected awning, not in the accompanying vehicle. One additional tent may accompany the caravan/campervan if space within the plot allows. Some people choose to bring or hire a motorhome, though drivers of larger vehicles or motorhomes may have to purchase a second campervan ticket if they cannot fit within the defined plot. The 2009 festival saw changes to the campervan fields; commercial vehicles were no longer classed as 'campervans', all campervans had to have a fitted sleeping area and either washing or cooking facilities, and caravans and trailer tents were allowed back at the festival. Prior to this only campervans were allowed on site, caravans and trailers being banned in the early 1990s after a number were stuck in the mud and abandoned.