Culturally the region is mostly Swabian, with some Franconian parts in the north.
The region has a strong wine and beer tradition with many wine and beer festivals round the year. Most notably are the Cannstatter Volksfest (an Oktoberfest-like celebration that occurs twice a year), the Stuttgart wine festival and the Heilbronn wine festival.
Typical dishes of the region are Maultaschen, Spätzle (e.g. as Linsen mit Spätzle), Flädle soup, Schupfnudeln and Zwiebelrostbraten.
Maps
Location of the Stuttgart Metropolitan Region (orange) in Baden-Württemberg