Reminds me of a race they had up a mountain and back down in Europe long ago. The road was only one and a half cars wide so the only way to pass was to pick a curve and hang the inside wheels out over the side of the mountain. A driver was making a practice run in a two seater and a reporter asked to ride along. When they got down the mountain the driver got out, the reporter didn't twitch, he was in catatonic shock! When he came around he explained that the driver was practicing the passing technique going up the mountain. The reporter remembered that. Then when they reached the peak and headed back down the driver shifted into high gear. When the reporter realized they were going back down the mountain a lot faster than they went up it, that was it. Lights out!