Valencia is within easy reach of the beaches of Costa Blanca, and not far away from Barcelona and the Costa Brava beaches.
Madrid, in the center of Spain, can be reached by car in 3-4 hours.
On the way to Madrid, Toledo is an interesting, historic place to stop for a break or to spend a day.
The infrastructure is generally good and especially the highways are usually in an excellent driving condition.
In some parts you must pay to use the highways, but in most places they are free, and if you get to a stretch where you have to pay, there are always alternative roads without payment.