In Germany we have different Tax-rates for different product-classes.
e.g. 16% for computers and 7% for books and food and 0%
tax-rates in 4.7 are just calculated by country, not per product
( you can't choose a tax-value when creating a product )
Probelm 2 is:
due to government-limitations all prices shown in a onlineshop
have to be with Tax. Product-Prices in 4.7 are w/o tax.