Firslty, malakia (you surely have to get familiar with this word and its derivatives..all my EU buddies have!! lol), that tickets went up. Not 2 worry though, miata (heads) is always the answer, no?
Secondly, sorry for my delayed reply, was on vacation in Lemnos island. Btw, whoever owns that white NA, mint condition mate, well done.
So, the route I chose lately for driving my miata from Athens and found it spot on;
Athens - Lamia, a 2 hour trip (or thereabouts) cruising. Sea on your right in a good part of the journey and you'll be just fine. Lots of toll stations though, keep your coins..
Lamia - Grevena; 2 hours
1. you'll begin with the Domokos section -one of my favourites in Greece- nice asphalted road, 2+1 lanes, you will definitely enjoy it.
2. Indifferent section from Domokos till Kalambaka, there's a pretty new highway part and besides that, nothing really to mention (unless someone else knows better, that is)
3. Kalambaka - Grevena. Love it, love it, love it; a stop, or better a large detour and visit in Meteora, is obligatory. google it, amazing site to visit. And from there on, lots of twisties with an astounding scenery as a background till Grevena. Top down, of course.
4. Grevena - Kozani; 30 minutes of highway till me and
@topetwrx welcome you -in person- to Kozani. We will be more than glad to meet up.