Singapore Cab Drivers

I got into a cab last Wednesday morning to go across town (it would have taken over an hour on a bus).    By the time I got to my destination, I was ready to hurl.... and that wasn't the first time...  and I'm sure it won't be the last.  What is it with cab drivers here?!?!  Particularly those who are older than ....  50?  Rather than applying the right foot to the gas pedal with a consistent amount of pressure, they do a kind of press... release... press... release... perhaps one iteration per second - and of course this is whilst careening around corners and dodging in front of cars at a frightening speed.  The result is that during this harrowing journey, my body is rhythmically moving forward, then back, forward, then back, as my stomach, of course, continues to move forward.  I think of opening a window for some air, but then realize I'll get a mouthful of humidity and fumes.  What are they doing?!  Is it a combination of bravado and fear?  They wanna go fast, then, no, they don't want to run into the guy in front, then they want to get around the guy on the right, uh, but better slow down - WHAT???!!!  At first I thought it was just the guys driving the "beaters", you know, the ones that look like 1979 Datsuns, boxy, noisy, jerky - but no!  They do it in the new Hyundai Sonatas as well!...................  next time, I'll take the bus.