Originally Posted by bazza
I wouldn't always assume that getting that paint code will mean it'll match. Remember the paint currently on your car has had a few years to fade.
Are you doing it yourself or using a bodyshop? If the latter, a decent one should be able to colour match for you.
It's not likely to make that much difference.
I recently had the rear panel on a 6 year-old 147 painted (colour was Alfa Red) and the work wasn't really noticeable.
Ditto for the diffuser on my 4 year old GT.