I usually get around either by bike or public transit, but I had to move some inconveniently shaped items (studio lights for photography), so I decided to rent a shared car. It took me almost 40 minutes for a trip that takes 10 minutes by bike and 15 minutes by public transit. It was also highly unpleasant, because the "weirdos" you mention also exist in car traffic. Only in this case, the "unpredictable idiots" are texting while driving and drifting out of lanes.
I'll need to transport the same things again next week and I'll either find a way to pack things more compactly so that I can take public transit, or I'll take a taxi (still takes longer, but at least I'm not the one dealing with traffic).
For context, this is in Munich, Germany.