Yes, you can turn your iPhone into a CarPlay. There are a few different ways to do this, but the most common way is to use an aftermarket head unit that supports CarPlay. There are also some vehicles that come with built-in CarPlay support, so you might not need to do anything at all if you have one of those. If you're not sure whether or not your vehicle has CarPlay support, you can check with the manufacturer or look for it in the list of features when shopping for a new car.
Once you have a head unit that supports CarPlay or a vehicle that comes with it built-in, using CarPlay is pretty simple. Just connect your iPhone to the head unit using a Lightning cable and then select the CarPlay option on the screen. From there, you'll be able to use all of your favorite iPhone apps on the head unit's display. You can make phone calls, send and receive text messages, get directions, listen to music, and more. And since CarPlay is designed specifically for use in vehicles, everything works well even when you're driving.
If you're looking for a way to use your iPhone in the car without having to fiddle with it while driving, then Carplay is definitely worth considering. It's safe, easy to use, and lets you keep your hands on the wheel and eyes on the road where they belong.