I have an opel insignia 2013 SE model I bought 2 1/2 years ago. It has approx 178k up on it.It is due an NCT the end of September. I need to replace the 4 tyres and also the DMF is on the way out(has been for the last couple of months). All in all I reckon it will cost me the bones of 2k to get it ready for the NCT. I have a couple of questions, is there any point trying to sell it as is? If I got the tyres changed and didn't get the flywheel done would it fail the NCT??