Well, I'm yet to buy a car in my life (viva la public transport), so there's a realistic chance I don't know what I'm talking about, but I can imagine the 4-5 years cycle largely depends on the resale value.
Apple products can have a hit&miss resale value; I think the 2015-2019 line of MacBooks were bad value at any time and any price point, and will be avoided well into the future. Hence my speculation: let's see what they ship this time.
Well I guess that's one reason why I seem to be incompatible with car ownership. When COVID hit, I continued to pay for my public transport ticket even while I couldn't even use it, because I wanted to throw in my share towards keeping the system alive and as good as it is.
Apple products can have a hit&miss resale value; I think the 2015-2019 line of MacBooks were bad value at any time and any price point, and will be avoided well into the future. Hence my speculation: let's see what they ship this time.