The version that is referred to has to be the 15" with extra SSD and more expensive CPU.
Before taxes Apple's prices varies around 10% with Japan and USA consistently being the cheapest. (Excluding "special" cases like Venezuela or mainland China with has either special import taxes or a failing currency.)
VAT (sales tax) in Europe is in general around 20%; for a company this tax is fully deductible.
Could you explain the VAT tax deduction? When I was in Europe I purchased one expensive thing, and I got a refund for VAT at the airport. This was nice and made sense. But otherwise I don't understand it.