We are "young 60s" types. Don't mind walking 4-8 miles in a day. Love history, food, architecture and art. Like to stay in a place several days, if possible, often in AirBNB type places. We generally take a carry on each for three weeks, but will sometimes check a bag (full of shopped items) on our return (substituting a previously collapsed duffle for a carry-on). We already bought RS Spain 2017.
Tentatively, we plan to fly into Barcelona (arriving around 9/14) and out of Malaga (leaving 10/5). Planning for 5-7 days in Barcelona, 2-3 days in Madrid, with the balance spent with Toledo, Granada, Cordoba, maybe one or more of the White Cities, etc. as we wind down to Malaga.
We expect to take a high speed train between Barcelona and Madrid, but are undecided on whether to rent a car or use public transportation the rest of the time (or in combination). (I drove around Tuscany and even drove the Amalfi coast, so I am not too intimidated by driving in Europe.)
Any help/suggestions as we try to further develop this admittedly vague plan would be appreciated.