> not really competitive with Tesla's offerings on range, efficiency, advanced features, and value/price

One big factor probably is you just don't need as much range in Europe. Cities are more densely packed so travel distances are shorter and if you really want to go really far there are better options than driving like trains.

Also I think the cars Tesla has put out are probably larger than people want over there. They're putting out large SUVs and regular sized American cars where Europe has traditionally favored more compact cars.