converting a low res jpeg to vector
Hello,
i am trying to reproduce a file from jpeg to vector and have tried a fair few routes but can't seem to get a good result. I have attached two files of a section of the illustration, the original and the converted one. The original is a pretty low quality jpeg but the finished one was done in illustrator I believe and was done pretty quick I'm told...40 mins and the file came back finished so gawd knows how it was done unless the person is pretty speedy with hand drawing in illustrator or I'm just slow! Two of the wheel lines are running over the frame which suggests a trace over using pen but could be just a added/edited part.
I put this request on the photoshop pages as I am presuming the original would have to have some kind of manipulation before sending to illustrator.
Any suggestions welcome

