Originally Posted by
cyccommute
From my experiences in the twisty canyon roads around Denver, I can corner faster than cars can on a bicycle. While they may have a wider stance and wider tire patch, they also have a few thousand pounds that I don't have to deal with. Hairpin corners are particularly fun since they have to really slow down while I can carry much more speed through them. On broad flat corners, a car can do them faster. But if the corners are really tight, cars can't keep up.
And you ain't never experienced speed on a bicycle until you've done ~50 mph on a loaded touring bike! 300 lbs of bike, rider and gear really pulls you down any hill

even at the go cart vs. motorcycle level, the go cart can corner far better than the motorcycle.
If a car can't corner faster than a motorcycle, then the driver is either chicken or they have a really bad car with bad suspension and tires.