Indeed, and one of the videos Is designed to show just that, the one in Castille de la Mancha. That is in the plain north east of Madrid (on which the rain in Spain falls etc). Nevertheless, Dell's (and my) point is to do with traffic levels and quality of tarmac, which I found to be pretty consistent from Gibraltar all the way to the French border. The scenery changes, obvs. Where Dell wants to go is very different from the plains of Castille de la Mancha, at least, I think it is from looking at Google Streetview of his route. There are trees, hills, valleys, etc.