You paid far too much if you paid £16.5k for an 06 car
You pay your money, you take your choice... 13k miles - 1 year warrantee, MINT CONDITION..., 2 new rear tyres and tax for a year gives me a bit of a saving
mine was 06 12k on the clock GT service, tax, and still in warranty, bought for 15k 2 years ago, wasn't a facelift but that only accounts for about 500quid difference.
but if you found one your happy with and it ticks all the boxes then