My mom lives near Wels, so you probably drive past there (where you leave A8 and join A25 then finally onto A1 near Ansfelden).
Pretty much all motorway between where I live (not too far off J7/M5) to Wels West (A8 exit 11) or Meggenhofen (exit 38) and then countryside roads.... I usually go up from Calais to Brussels, then past Aachen, Köln,... pretty much all on German A3.... then A8 in Austria
Zagreb sounds nice, lots of people told me it is... never managed to go there yet... maybe next year. This year off to Hamburg (gonna pick up my brother who takes train there from Austria), the Copenhagen, Gothenburg, Bergen, Oslo, Stockholm, Rovaniemi, Turku, Helsinki... and back again (on ferry helsinki - travemünde though).