Having current, accurate information for residual value, money factor, and incentives is important in understanding you deal. As such, going directly to a source that has access to that data from the captive banks is your best option. The forums at Edmunds are where we go to get that information, as they have direct access to it from the captive banks. You’ll want to post of the model specific thread for the vehicle you’re interested in and request the most current numbers for your zip code. It is often easiest to find that thread by searching Google for “Edmunds lease” followed by the model of vehicle you’re interested in.
The solution is to negotiate a better deal. Apples to apples, a comparably equipped X3, GLC and Q5 will be more than a well-negotiated QX50. Even more so if BMW, Mercedes and Audi do not have TX tax credits now.