Sepulveda is a good one, but i remember for a small section it's called "Imperial Highway"[1] And that is 169km, and the longest "straight" section is 50km[2].

Sepulveda is a good one, but i remember for a small section it's called "Imperial Highway"[1] And that is 169km, and the longest "straight" section is 50km[2]. I have driven that stretch many many times, and it takes hours, even at midnight. [1] https://en.wikipedia.org/wiki/Imperial_Highway https://en.wikipedia.org/wiki/Imperial_Highway [2] https://i.imgur.com/c7Og4sr.png https://i.imgur.com/c7Og4sr.png