I applaud this database on this website which is getting real world data on the milage produced by these hybrid cars. I purchased a Saturn Vue Greenline Hybrid recently I know the technology on this vehicle is not as advanced as the Toyota system as there is no electric-only drive system and the car has a smaller battery. However, I am tracking the milage I am getting and right now after 221 miles I have used 9.0 gallons of gas. My car is getting 24.5 miles per gallon. That appears to be in the range of the Hylander and Lexus suv's. I think the best way to see what the different systems do is to compare them with real data as you are doing.

Please add this as an option for your database so we can track the performance of this GM offering.
Jon Utech