In browsing the individual car results list, it appears most cars had their slower runs in the middle lanes (black and white) as would be expected. Some were slowest in black others in white. Rocketcar: seems you just had a particularly bad run that happened to be in the black lane. Maybe just coincided with a bad staging of the car and catching some 'bad air' off the cars in adjacent lanes.
I, on the other hand had the opposite problem. My first run of the day (also SS car) was in the Black lane, and it seemed to be pretty decent. Having already heard the chatter from those running the race that Black lane was running slow, I felt pretty good. BUT imagine my disappointment when my car proceeded to run SLOWER in Blue lane then even slower in White, followed by a decent run in Red. Overall, had a respectable SD of 0.0020