First taking the BAM brands out of the equation, how are things shaping up in the Republic of South Africa? From 2010 to 2016, premium sales were down 6%. That shows the issues facing the economy there. Now individually: Porsche +103% JLR +3% (LR -6% Jag +72%). That's the increase dealt with. Lexus -26% Volvo -33% Alfa Romeo -65%. Infiniti is new and while it started OK, sales crumbled in 2016.
Summary: Porsche and Jaguar grew but for the rest a sad picture.
Now adding the other brands to the BAM marques, how do things stack up? Total sales decrease becomes -3%, due to the BAM brands falling 2%. The 'Others' took just 15% in 2010 and ended up about 14.5% in 2016. The BAM marques took 86% of all premium sales in 2016.
Summary: The BAM trio are clearly preferred to all others but for all brands a poor picture. None of the BAM makes did well. It's true that the total market fared worse but all in all a depressed car market. The three biggest in 2016 were 1) Mercedes, 2) BMW & Mini, 3) Audi 3.
Data source: Naamsa.
Text source: RayCee.