First impressions are everything, especially in the car business. When customers pull up to your dealership, they should see a clean and well-maintained facility. This will give them the impression that you are a professional operation that takes pride in its appearance.
A clean dealership will also make it easier for customers to move around and check out the cars on your lot. If your dealership is cluttered and messy, it will be difficult for them to navigate and they may just leave without even looking at any of your vehicles.