its a 200k over a mix of Asphalt, Cobblestone and "white roads" which are like dusty backroads.
The famous white roads can be some of the most beautiful drives you've ever made. But make sure the road is passable. On the local maps the roads in good condition are marked with 2 solid black lines with white space in between. The questionable roads are marked with dashed lines and can actually be just tractor trails and farm roads. The white roads turn very dusty during the dry months of the summer, especially in August you'll be driving with a dust cloud behind you and your car gets all covered up with the fine clay. During rainy winter months these roads can be soft and muddy.
Its not nearly as long as PBP but a similar rig would probably be well suited for it. 23mm tires would no doubt be painful and probably flat a lot.