Texaggie7nine said:
Should be no different. France is Schengen as well.
Looking it up now it seems you may have to do a checkpoint if you cross over via the super small country of Andorra which is not a Schengen country, but otherwise, if you are going straight from Spain to France, no checkpoint.
I crossed in Andorra a few years back. Don't remember having to stop. They just did the usual checking of passport at accommodation. It's a nice spot but not something you need to go out of your way to do.
Nazare is also a nice place to stop if you drive Lisbon to Porto. The view from the area above town is pretty cool overlooking the big beach area. As previously mentioned, if you are there to see waves you need to camp out for a bit.