yer i start all my auctions at 99p.
End of the day an item is only worth what people are willing to pay for it, so if its worth 300quid it will get bid up to 300quid, regardless of starting price.
Just need to ensure it gets maximum views, so get the categories and all the specific details correct, ensure the title and description is good, and matches popular search terms, and make sure it finishes at a sensible time.
That ones finishing at 8pm on sunday which is pretty much peak time/day for ebay visits. Title and description could be better though. I'd have put "1.8T" and "1.8 T" in the description for instance, as if you searched for "A4 1.8T Cat" it wouldnt find your auction. It also doesnt state which model of A4 it fits, could be B5 or B6...