OK so I went on a drive this evening with my wife's little Punto. After some spirited driving out of the sudden car lost power, working on three cylinder. Pull out on a petrol station to buy cigarettes and open bonnet. I was hoping to see some bad HT lead, but instead I found oily engine and bay. Dipstick out of its place for few centimetres, lots of oil on exhaust manifold and pretty much everywhere. Took it home and found oil in intake manifold also. What is weird is that engine sounds like it's only burnt valve (obviously it isn't) without any noise from engine except working on only three cylinders. Car is 16V DOHC belt driven with 217000km (135K miles). Sorry for long post, but I would appreciate your opinion.