The CL-Elo is a rating system giving each Cityliga driver a certain amount of points. The higher the points, the better the driver probably scored. This score is calculated for each driver and takes every race into account since Cityliga season seven (the first in the MPres database).
If you are interested into how the score is calculated exactly, take a look on the "What?" page. On the Cl-Elo-Overview page you will find a sortable ranking of all driver since Cityliga season seven, who startet at least five races. With a klick on a driver there, you will see some detailed information, some nice graphs an the link to the personal ranking-signature. In the CL-Elo-History you can choose multiple drivers to plot their CL-Elo graphs simultaneously
This project will be updated regularly, so dont be too disappointed if not all functions are currently available ;).