BMW North America teams up with creative shop KBS to show what can happen when you have a very candid granny riding in the third row of an X5 model.

Here a mom and dad find their plans for a peaceful long drive with grandma and the kids foiled when certain car features inspire Nana to share some slightly embellished tales of survival, a modest upbringing and passionate love affairs. Every time Dad interjects with a point of clarification, he finds himself on the receiving end of some pointed driving advice from an indignant back-back-seat driver.