Volvo is bringing it to market. It all started with the XC90(up to 30 km/h) and now with the S90 and V90 is going to work up to 130 km/h which is perfect for highways. Other than that they've recently started a collaboration with Uber [1][2]. I tried myself the S90 pilot assist and it works really well, it does require you to be more "present" on the wheel than what Tesla requires nowadays but it's surely going to be impreved via OTA updates.

[1] : https://www.media.volvocars.com/global/en-gb/media/pressrele... [2] : http://www.bloomberg.com/news/features/2016-08-18/uber-s-fir...