> Yes, but the Model Y remains the single unique best-selling car. VW needs to put together a few vehicle models to get to the same numbers.

This is why I'd say Tesla's stagnating. They don't have brands to fill in those gaps, other car makers don't feel the need to say "best selling model", they just go for the total sales.

Similar thing happened to Apple with the original iMac: it was the (world's? USAs?) "best selling model" of personal computer. The entire company was still struggling and had like 5% of the total personal computer market, but they had only one model of consumer-focused personal computer and everyone else had loads of models.

I think Apple are still only around 10% of the personal computer market today, their money is from branching out to phones and so on.