The first wave of smart cars ran on electricity instead of petrol. The next had some voice activated controls. Next, as autonomous vehicles start to enter the market, we'll have more time and space to enjoy the ride. This means more time for consuming content, and more opportunity for advertisers to reach a captive audience.
A Smart Car Interior Advertisement Sales Representative will liaise between advertisers and car manufacturers to place personalized ads into vehicles. This job hasn't yet emerged - we'll probably start to see it appear around 2030.