1. Consult individual car specifications: You would have to go to the websites of various car manufacturers and look up the specifications for each model, searching specifically for wheelbase. This is a very time-consuming process.
2. Use advanced car specification websites: Some websites allow you to filter by specific parameters, including wheelbase. However, finding one that allows precise wheelbase filtering and also filters for rear-wheel drive is unlikely. Most focus on more common parameters like year, make, model, etc.
In short, there's no easy answer. The 114-inch wheelbase is not a standard or particularly common dimension. Your best bet is the painstaking method of manually checking individual car specs.