Chevy owners can get unlimited data through the car's WiFi hotspot for just $20 a month, which compares well to the current rates for its AT&T-backed plans: 1 GB for $10, 4 GB for $20, or 10 GB for $40. As before, those with AT&T cellular plans can tack the charge onto their bill. The in-car data connection can be shared by up to 10 WiFi devices, and it has a better antenna than your phone does.
Of course, these unlimited plans don't always offer unlimited high-speed data. Most give you a certain amount at 4G LTE and then throttle the rest of your usage for that month. Chevrolet doesn't mention any such limit, and the OnStar site hasn't been updated with details on this new plan yet, but it's likely that the car's hotspot will be treated like any other AT&T device on an unlimited plan and be capped at 22 GB of high-speed data. That's still a fair amount of fast data, but just be sure to read the fine print before signing up.