Burberry London items are made everywhere. Turkey, Romania, Poland, China, Hong Kong, I've seen the odd item made in Bosnia too in the past.
I own a few Burberry Prorsum items, The trench coat below, a few cashmere knits & other pieces all Made in Italy. The quality is amazing, the fabrics, the stitching is the best of the best. Although some of the jeans from the Prorsum line are made in China + Turkey, same with the t shirts.
http://au.burberry.com/store/menswear/trench-coats/prorsum/prod-44555591-mid-length-cotton-trench-coat/
Regarding the two coats, I actually like the look of the London one better. You will probably find the fabrics and finishing details are the main
differences between the Prorsum. + The London one is likely made in Turkey / Romania. For this particular piece I would settle with the London one.