I dont want to alarm you but - a number of years ago we bought a brand new sport cruiser which turned out to have very many problems similar to yours plus a number of others - some minor and some very major - unfortunatly the uk dealer was not financially sound so we had to prepare a joint case against the American manufacturer - inshort we owned the boat for over 3 years whilst te legal side progressed - altough we only used it for the first 6 weeks. The end result after a lot of grief was a replacement boat - hich we sold straigh away - and a legal bill of over £20k for which there was no compinsation (2/3 the value of the boat) lucky we had legal insurance - but that is another saga in itself so the moral is you can get something back in the end but be prepared for it to cost you time and money and by the way trading standards did not want to know I would tell you who the manufactrer was but our final agreement contained a gagging order