From North to South:
Heilbronn - Würzburg A81: Take the exit Möckmühl (no. 7), drive towards Züttlingen, and continue via Neudenau to Billigheim-Allfeld.

From East to West:
Heilbronn – Mannheim A6: Take the exit Heilbronn/Neckarsulm (no. 37), drive on the B27 to Bad Frierichshall, where you exit the B27, and continue via Untergrießheim to Billigheim-Allfeld.