I would have thought that assembly was pretty significant. IIRC Skodas are built in almost brand new plants. And there may be issues of industrial relations - think of the BL plant managers who had to let any old rubbish go lest they provoke another strike.
I had two Skodas. I bought my 1995 Felicia for £6800 new (list, no discounts to be had) and sold it back to another Skoda dealer for £4000 cash three years later. Less than £1000p.a. in depreciation. Entire warranty work one wiper blade (snapped rivet). But then it became socially acceptable to own a Skoda so I bought a Suzuki Wagon instead