u played too much arcade games? yeah, actually, its more than 2
rounds.
and the wheel doesnt turns 90 degree.
if lets say half a round is all it takes to turn the vehicle wheels
full lock..
if travelling at fast speed, a very slight turn of the wheel may
make the vehicle skid or even flip, in the case of small
vehicles.
and to turn so many rounds, lets say u are turning at tight
angles.. a small change in the sterring wheel translate to a small
change in the wheel turning.. more practical isnt it?
FYI, cars is 2.67 turns