ive just bought a rover 45 1.8 petrol and the thing was fine until i got it to speed (about 60mph) thats when it started to judder. so stopped and all was fine and carried on but the thing happened again. ive now got 3 machanics out and got 3 different solutions.one said it was the fuel pump one said it was the coil pack and the last saying it was blocked fuel lines. its been on the computer with no faults. i changed the fuel filter with no change. does anyone out there have a clue or is it a case of trail and error. obviously dont want to be wasting money.