Like everyone I have wondered about the petrol smell - and had it checked out by a local VW aircooled specialist. It still smells sometimes.
Is it possible to get a "legimate" petrol smell if going fast, downhill, in gear, with foot off the accelerator, ie is it possible fuel is forced through the system unburnt....?
Also - it seems when cold (ie choke engaged) the smell is worse, which may be expected (?)
Sorry to hi-jack the thread, hope this is relevant, are these possible - or am I just displaying my ignorance...!