Use the outside lane for overtaking only.

【lane】外侧车道仅限超车使用。

Yeah, and safely because you know there's not going to be somebody in that outside lane obeying the speed limit to the letter who's going to present a danger to you.

对，安全驾驶，因为不会有严格遵守限速规则的人在外车道对你造成危险。