[Isow]

My 328 auto also rolls.
Whenever I stop, say at traffic lights I put the auto gearbox in P.
I only apply the handbrake when I finish my journey.
Am I causing wear and tear on the auto transmission ?
The salesman told me that he always uses the P when he stops and not the handbrake.I assumed the P was just like an electronic handbrake.
Am I wrong ?
I would like to emphasise that the car rolls identically, whetherI put the handbrake on or whether I press the P button on the auto gearshift.
That's why I assumed P was an electronic handbrake.