The Height of Drive-Thru Windows

My apologies if this has been asked before, but a search on the words in my title didn’t appear to reveal anything on topic.

A new Taco Bell has been built in my town. I went there today due to an uncontrollable nacho craving and saw something a little odd. The drive-thru window had been built higher than normal. I’m terrible with estimating measurements, but it seemed to be able 6" to 8" higher than usual.

My questions are:

  1. Is this a new design used in other newly-constructed drive-thrus or was this Taco Bell just built differently?

  2. If it is prevelent in new construction, is it because of the popularity of SUVs?

  3. Is it for the convenience of the customer or the server?

If I had to guess, my answers would be:

  1. Yes.
  2. Yes.
  3. Both.

My sister has a 2006 Honda Civic that she loves, but it is truly like your ass is skating on the pavement. The Starbucks on her way to work has apparently been designed just this way. I’ve never noticed it since I drive a 4-runner(ducking abuse)
-Lil