Some thoughts about width of vehicles

Sometimes, while driving, I missed narrowly hitting the backside of the vehicles while overtaking. Though I tried to keep some distance during overtaking, still these vehicles come closer to me. This happened mostly with tri-wheelers.

It is my impression that the tri-wheeler vehicles due to their smaller driver cabin compared to their luggage rear portion, these drivers are taking care of only themselves without ensuring safe margins for entire vehicles.

So, I feel that the width of the vehicle should be the same both at the front and back so that this sort of problem may not arise.