The way it was explained to me was that every car is immediately pulled from the last point on the line to a dyno, started cold and redlined in every gear plus reverse, all the vitals of the car are checked to be within spec, taken for a quick spin on the lot, then preped for shipping. He said the tour guide told them that Honda engines are engineered and assembled with such precision that this can be done with virtually no risk to the durability of the motor or transmission. The tour guide also hinted at the fact that the break in period, while still recomended by Honda, is almost a moot point. The engines are about as broken in as they will ever be by the time they reach your dealership.