Almost every Opel has been offered with a 4cyl engine. Few exceptions to this are Commodore that was only available with straight-6s and the Kapitän, Admiral and Diplomat trio. The 30's Super 6, Kapitän and Admiral had I6s and the later 60's and 70's K.A.D. models were either I6 or V8 (sbc). Omega B was offered wih many I4's, V6's and I6's. There was also a V8 model planned but sadly it never came reality.
Opel names it's generations pretty straightforward, starting from "A" and continuing from there without skipping letters. So there has been a B generation of many models, for example Kadett B, Ascona B, Manta B, Rekord B, Omega B, Admiral B, Kapitän B, Diplomat B, Commodore B, Corsa B, Vectra B...
Funny thing about the letters is that when Kadett was replaced by Astra in the Opel model palette the letters kept going on where Kadett left. So there are Kadetts from A to E (and the pre-war model) and Astras from F to H. I-generation should come out this year.
I think a few things that have generated a lot of interest - maybe more than any other thing - towards the Australian car industry, are the first two Mad Max movies
. Seeing the Falcons every petrol-head wanted to know more. These movies and the Falcons certainly boosted up my interest. I think the first spark came from seeing some cool Utes, and later the 60's Monaros made me drool, they still do. The Opel-virus in me has made me searching more info about the Australian Commodores and also about Brazilian Chevy Opalas etc. But how to add one of each to the garage
.