Convertibles are being phased out worldwide.
Reasons for the decline of convertibles include practicality, durability, cost increases, and new panoramic sunroofs and glass tops, according to experts. Automakers are also investing capital in off-road models and electric vehicles. Source
The VW plant described in the article, known as Karmann before being overtaken by Volkswagen, traditionally had produced the convertibles for Volkswagen and Porsche. Demand has changed now, from sedans and compact cars as convertibles to SUV models that don't offer a convertible option anymore. .