Apple CarPlay was released in 2014 and allows drivers to access the phone, messaging, audio, navigation features and all other car related apps of their IPhone from their car. Users can connect their iPhone to the car either by using USB port or via a Bluetooth connection. Apple has own phone, messaging, iTunes and maps apps, third party-apps including Spotify, audible and stitcher.
Apple CarPlay is available on more than 200 different car models from 40 brands including Audi, BMW, Porsche, Renault and Volvo. Amongst the cars which feature Apple CarPlay functionality are the new Volvo XC30, which became car of the year for 2018.
Apple CarPlay is available on any iPhone which comes with a ‘lightning’ charging cable.

Android Auto was designed with simple and intuitive interface, integrated steering wheel controls and powerful new voice actions, it is designed to minimise distraction so that you can stay focused on the road. In order to use Android Auto, you need an Android Auto compatible vehicle or after market radio and an android phone running 5.0 (Lollipop) or higher OS. Android Auto supports over 400 car models such as: Acura, Alfa Romeo, Audi etc.

Blackberry QNX is an operating system that powers time-sensitive tasks, like driver assistance systems. QNX is able to handle tasks in milliseconds, something that will become very important as self-driving cars have to make quick decisions on the best course of action. Blackberry QNX is running in more than 60 million vehicles as of
the end of 2014, with over 40 automakers relying on the software platform.

Ford systems are integrated in-vehicle communications and entertainment system that allows users to make hands-free calls, control music with touchscreen input and voice-activated controls for hands-free operation of the cars multi-media components as well as mobile smartphones via Bluetooth or a USB cable. The system has the ability to recognize over 10,000 voice commands.

Automotive Grade Linux is a collaborative open source project that
is bringing together automakers, suppliers and technology companies to
accelerate the development and adoption of a fully open software stack for the
connected car. It is an open operating system and framework that was launched
in 2012 with founding members including Jaguar, Land-Rover, Nissan. AGL Is not
included in any car yet, but the first version was released at CES 2016 back in
January. AGL developers are looking to integrate version 3 appearing in 2018
model vehicles.