Just like petrol, autogas vapour can ignite, but unlike petrol autogas is stored in a vehicle in a strong steel tank and has a number of safety valves.
Independent tests by the TNO in Holland concluded that LPG vehicles were safer in an accident than petrol. In fire service tests in the UK it was demonstrated that in the event of a serious fire occupants in a vehicle have three times longer to evacuate with LPG than petrol.
Culled from www.drivelpg.co.uk
Wouldnt you rather switch to the fuel of the future?