but for high end or luxury consumer goods the R&D investment will be added in like for autos and tablet.
so when you know anything how manufacturing works and to hear a $2000 nano car or £35 tablet, you'd know they are either rubbish quality (just like those things from 1 dollar or poundland) or a copy of existing products.
for example the quality raw material Mercedes to use, the advancement of the machines to produce, the modeling cost and the level of marketing campaign expenditure they spend on a certain model which will set a minimum price limit for each model, even hypothetically when it reaches the economy of scale or maximum production it still will not sell a car for just £2000.