A bit of information on the Sytner Newport car from my research a couple of months ago. It is one owner from new, locally owned and the guy px'd it for brand new car. I was sent a video on the day it arrived and the exterior looked in excellent condition. However, the seats were in poor condition and I know Sytner fitted new leather from Germany at a cost of nearly a grand. The interior now matches the exterior in terms of condition, or so I was told.
They initially wanted £12k but upped that to over £13k to cover the seats. It's now back at £12k and personally I'd take a look if I wanted a silver / grey auto. The BMW Warranty is worth £500, so not vastly overpriced being 1 owner and full history.
Hope this helps.