Every VW Showroom has a iPad application which helps them to sell cars, allowing them to walk through configuring a vehicle, finance deals and other reasons why buying a Volkswagen is such a good idea. One of the features that was added a number of years ago was a Stock Lookup, allowing retailers to see what was available nationally or on their Forecourt which might match the desires of their customer.

Imaging you were approached by a client, and asked to build a site from scratch. No arbitrary constraints or legacy systems. What would you do?