Certainly they do, but of course, they would think so. Still, I'd argue that this is not even that crazy. At least in San Francisco, I vastly prefer to ride with just about any colleague I've ever met than the local taxi drivers, based on these criteria:
- comfort while riding (lack of abrupt motions requiring me to brace myself)
- courtesy to other drivers and pedestrians
- actual number of traffic accidents (colleagues: 0, taxis: 2, although fortunately both accidents were mainly property damage rather than serious injury... but still)
There have been many studies that show that the large majority of people consider themselves "better than average" drivers. It is called Lake Woebegone effect or Illusory superiority - http://en.wikipedia.org/wiki/Lake_woebegone_effect
