When Consumer Reports tested ADAS systems in 2020 [1], they gave their highest rating to the Comma Two. I'm sure it's only gotten better since then.

I really like my 2017 Chevy Bolt except that it doesn't have ACC. I wish I was comfortable installing a Comma on it, but it requires a gas pedal interceptor [2], and I'm not willing to do that to a car that I transport my family in.

[1]: https://data.consumerreports.org/wp-content/uploads/2020/11/... [2]: https://github.com/commaai/openpilot/wiki/comma-pedal