Just had a woman come and see my lupo with regards to buying it - an older woman than obviously knew nothing about cars... After turning down an offer from her - she came back 15 minutes later saying that she was going to leave the car due to the vibration when idling... The car I dont feel vibrates too much and think its just a way of leaving as I rejected her offer... Can anyone here with a lupo sdi/arosa sdi let me know how much there car vibrates on tick over...Mine isnt bad at all and considering the size of the engine to the size of the car is remarkable!!! It has been checked over by a mechanic friend of mine and he said mine is very smooth as the engines are high compression and thats how they are... if anything mine is uncommonly smooth!