When I had a Mk6 Golf GT I remember having to specifically locate an ancient phone as it used a Bluetooth standard which people had forgotten about years ago. So you can't guarantee that Car Play / Android Auto on today's cars will work with tomorrow's phones.
My 2015 golf Cabriolet is technically a mk6 with mk7 tech. It has the latest audio set up with carplay and android auto. And the bluetooth stand is irrelevant as both these systems predominantly work via a wired connection. That said the latest new cars like *cough* bmw *cough* use the new Bluetooth connection for carplay.
You're always going to be reliant on something not changing. Things will always change. The life cycle of most cars is around 10 years once you get beyond 10 years it’s goimg to be unlikely that the latest phones will still work the same, that said my wife’s brand new iPhone XR still works and connects fine with blue and me in my evo (that said a lot of people are not so lucky)
Again, it's down to expectations and use - will Car Play or similar put the turn by turn information with graphics of complicated road layouts on the info screen between the speedometer and rev-counter? Will it display on the latest digital dash in front of the driver and will it interface with the HUD in the same way?
Yes, yes it will. Sadly my car was an early adopter of car play so It didn’t support it but cars after 2016 had this ability if the car manufacturers fitted the right bits to support it, it’s due to fitting the right components in the car. It will do what ever the phone does, if they update the phone it will reflect that as well. A couple of years ago they did an update and added the speed limit of what ever road you are driving on, except in France where it’s illegal to have that information, far smarter than a dumb satnav unit that needs to have a £60 map update once a year.
I can see why people in lower end and older cars love the whole CarPlay thing, but if you're running a succession of brand new fleet cars for 4 years and handing them back, getting one with a fully sorted and integrated system is best.
Actually fleet companies love car play and android auto, because it’s a wired connection and you don’t need anything special, just an iPhone or android phone, the majority of people can get in the car plug it in and everything just works, no messing about with Bluetooth pairing, no 47 phones logged in the cars Bluetooth memory. Hands free calling works, data streaming just works, anyone can go from one car to any other can plug their phone in and have their own customised screen in what ever car they drive, leaving no traces behind.
To be fair, we have a policy (which I should always follow) of 'belt on, phone off' - so in theory, I shouldn't be using CarPlay in a company car - and I have a feeling I couldn't even order it as an option - I once tried to order 'enhanced bluetooth' and had it rejected as it may encourage me to make calls whilst driving.
That’s fine you don’t buy your own car, some of us do and we want the better options not the basic kit.
It’s worth noting though that most dealers can now add carplay as an option after the car is sold, the latest bmw idrive system you can download it as an app and install it yourself if your happy to spend the money.