Amazon will now allow car makers to bulid their own voice assistants based on Alexa AI and use custom commands. The users will be able, for example, to ask the assistant roll down a car window, or how to troubleshoot a device without connecting their mobile phone to the car.  As stated in the blog post, Fiat Chrysler Automobiles is the first Alexa Custom Assistant customer, and has already begun the planning process for the development of their intelligent assistant for integration in select vehicle models. This move might lead to increased internet traffic in the car domain. 

Further reading: 
https://developer.amazon.com/en-US/blogs/alexa/alexa-auto/2021/01/Amazon-Announces-Alexa-Custom-Assistant
https://www.theverge.com/2021/1/15/22231336/amazon-alexa-auto-ai-custom-digital-assistants-car-makers