Shit.I was on a trip with a guy who had jerry cans on his roof-rack and developed a slow leak while he was driving. Something ignited it and within literal seconds the entire Defender 110 was in flames. They were out of the vehicle very quickly but still sustained serious burns and the vehicle was a complete loss. Petrol in jerry cans is a serious fire risk so I personally want it to be the exception to my trips, not the norm.