The problem started last week whilst I was on my way to portsmouth, on the M40 just before a junction the engine cuts out. Luckily for me I did the right thing and turned the key in the barell and back again to get a restart whilst in motion. Not sure if thats good or not, but got me out of trouble. then hassle free for another 50/60 miles. a few days later again the same problem but this time I am in Northern spain climbing and descending mountains, but got the car to restart in motion. My only thought goes with the fuel, I had no choice but to use 95 RON fuel when the fuel stations ran out of V-power, so the problem started with the 95 RON fuel in the tank. I only drive my car 2 miles return to work, so always cold engine. After 3 tank fulls of 98 RON driving back from Spain (930 miles) I had no problems at all. did not want to drive back but the ferry got scared of the rough sea's.