VW of America and VW Canada are completely different subsidiaries of VWAG.
Trendline, Trendline +, Comfortline and Highline are used in the rest of the world (outside the US).
In the US, we can't get sunroofs on a lot of models with manual transmissions, or leather seats. VWoA has increasingly de-contented our cars and has been adopting a marketing perspective that we're all stuffing our faces with cheeseburgers while texting behind the wheel of a '94 Camry with crank-up windows.
Speedo dials with a single unit of speed is probably for esthetics (looks less cluttered) but may be a cost saving move to decrease the number of parts needed in specific world markets.