Basic Car Site Solution

We have several car dealer customers. We'd like to create a fairly straightforward solution that would allow our customers to easily create and manage a dealership website. We'd like it to be client/server based. A single database would hold all cars for all clients and the layout for the car listings would be the same for all clients. Their homepage would be unique and not managed by this solution. The desktop portion would be used by each customer for 100% of site admin of their account and inventory management such as adding pictures of cars, etc. Qualified coders please contact us for further details.