I wouldn’t buy a modern vehicle without CarPlay. It’s simply that good, and I’m pretty Apple critical these days.
I still like vintage junkers that are easy to work on, but there’s about two decades of nope for me now.
You can get an aftermarket head unit with CarPlay and keep your car! I have no idea why this wasn’t better publicized.
CarPlay (don't know about Google's system) is a huge upgrade over car manufacturers' systems. Still wouldn't cause me to sell my 10 yo vehicle with <70K miles though.