I'd personally love if manufacturers actually offered upgrades on their older cars. I had an older Mercedes-Benz and I would've absolutely given Mercedes-Benz money if they had a first-party CarPlay solution for my then car.
https://newsroom.porsche.com/en_US/2023/products/porsche-cla...
They even made an amusing ad to that effect: https://www.youtube.com/watch?v=R8-9oIq1hxw