Woe is me - driving back this morning from Southminster Mrs Mabel said she could smell petrol - think nothing of it I said as we had only just left and i assumed it was that start up smell. We pulled into a garage and stuck £20 fuel in and pulled away. As I went round the bend, I lost all power, dropped into 2nd where she caught again then back to 3rd. As I did we could smell smoke and so I pulled up outside a farm shop and as I got out the back erupted in flames. Threw the wife out and then ran round to the slider to get the puppy and the fire extinguisher. The fire extinguisher failed to go off despite being fully pressurised and in date so in despair i ran back into the van to get as much out as i could and away from the van. At that point i realised we had two big gas cannisters so i went to get them out just as the farm shop owners, who were opening up for sunday trading arrived with 2 9lb powder units and put the fire out. Had they not been there or we had stopped elsewhere then Kitty would now be a smoking shell. Looks like either fan belt snapped and took out fuel line, fuel line failed or a combination of both....... Fire brigade attended and the AA recovery was there with an hour so all home. No one hurt, just shook up. Lets hope Just Kampers insurance comes good.