Can you imagine Ford or BMW saying "here's a great new car that can do all these amazing new things, but er its going to look exactly the same as the one we were selling you a year and a half ago....er please still buy it right?"
It would never happen, what on earth were Apple thinking?....they are notorious for drip dripping out each tiny technological advancement in order to maximise profits but keeping with the smaller screen while all other smartphones are going 4"+? keeping a phone made of glass?....
Mental.
I can actually, cars life cycles for body styles will last often 3 to 5 years or more, so yeah I can see Ford and BMW doing that.
Case in point the Ford Focus 1 gen ran from 1998 to 2004 in EU and 2008 in NA looking the same. The Second gen was only an incremental design change.
For the BMW 5 Series these are the years they ran; 1st gen 1972-1981 (9 years), 2nd gen 1982-88 (6 years), 3rd gen 1988-1996 (8 years) etc etc.
Check your facts.