My car has high flow cats on and never smelt of petrol. It could be over fuelling. It might have loose bolts. Best get it on a ramp and check it out. As for the eml light would probably be due to the high flow cats. Probably nothing to worry about on that front.
To be honest I would do the test drive myself. As if it were to break it would be my fault. Just imagine if someone too it out for a test drive and totalled it, I would not like that at all.
Hi and welcome along buddy. Nice looking car. If you’re on Facebook there are some breakers that might be able to help you out. Scott soulby and Paul Thompson and Tom Jefferies iirc 👍