Station wagon is the german Kombi - usually more along the line of being more room in back (think old Astra -Kombi, Passat Variant) than life stile (think Insignia, BMW touring, Audi Avant).
For US tastes C-Klasse is borderline, so either that or E-Klasse. S- or R-Klasse too bulky for rural spanish roads. As switching from E-Klasse and above to ***any*** Skoda is doubtful from image alone, I'd guess C-Klasse to Octavia ;-)