The Kadett D wis introduced in November 1979, goin on sale in the UK some five months afore the Breetish version, the Vauxhall Astra Mark 1, wis launcht in Aprile 1980. Aw models wur designed as three- or five-door hatchbacks an estates or station wagons. Thare wur an aa twa- an fower-door sedans, which uised the same bodyshells as the hatchbacks, but thir wur suin dropped. An aa dropt, in comparison tae the C Modell wis the Coupé.
In the US, some 500 Buick dealers started carrying the Kadett in 1964, after their previous sole product, the larger Rekord, was knocked out of the ring by GM’s own 1960/1961 compacts. I strongly suspect the Buick dealers (and their ad agency) who hadn’t yet taken down their Opel signs were not really very committed or motivated, and all of 17k ’64s and 14k ’65 Kadett A were sold. Meanwhile, VW was moving some 400k Beetles in America.