CarPro have successfully done integration with “WeYield”
WeYield is a software company dedicated to Yield Management in Car Rental and Mobility activities.
They provide web application to maximize rental operation revenue via demand piloting, fleet control and rateshop analysis.WeYield is interfaced with CarPro systems via a direct link for the reservations and the fleet to feed its piloting web apps.
For more details about WeYield,

Visit WeYield