SA focus - cruise control on downhill

[In Focus]

I managed to find a steep enough slope to test any system (Greenmount Hill in Perth, for anyone who knows it), but unfortunately I was stuck in a queue of cars. The adaptive cruise was having no problem restraining the car to maintain the gap, but I'm not sure how it would have performed without cars in front of me.

I did see a 4kph creep on a few steep-ish slopes where I was flying solo.