 I'd like to share with you my experience with the mileage of my Audi A3 eTron. This is similar to what I wrote on Yelp a couple of weeks ago. I'm giving this review 1 star because the car did not meet my mileage expectation for a plugin-hybrid car. I purchased my 2016 Audi A3 eTron around 6 months ago hoping that I can:  1. continue to be motivated to support our planet by going electric / hybrid; 2. get the best gas mileage (savings) with a powerful car; and, 3. get the carpool lane sticker. So given my first 2 goals, I thought that I "upgraded" when I changed my Toyota Prius to the Audi A3 eTron. I was totally misled by the advertising of this plug-in hybrid car. And now I'm beginning to think that I actually made a "downgrade." AUDI USA claims that the A3 eTron can run 83 miles per gallon on hybrid mode. This number 83 was on the window sticker when I got the car. And the salesman also told me that the eTron can go 83 miles per gallon on gas + electric mode. First thing that came in my mind is the huge savings that I can get considering that my Hybrid Prius can only deliver around 48 miles per gallon (Toyota claims that the Prius can go 52 miles). Second thing that came in my skeptical mind is not to believe the advertising. So given my experience with my Prius, I thought that if AUDI USA would put a claim of 83 miles, maybe they really meant around 75 miles (given a 10% error on their estimate). But 75 miles per gallon is still huge savings. Third, if one of my objectives is to save money, then why consider buying a "luxury" or high end car. Why not just settle with a Prius? or a Volt? Just because I purchased a more expensive car does not mean I waive my rights to complain about its mileage. The advertising still says 83 miles. And so I purchased my AUDI A3 eTron at Audi San Diego in Miramar Road. Don't get me wrong. It is a great car. Its just that it cannot run 83 miles per gallon on hybrid mode as claimed by AUDI USA. Why? I'm still unclear about the explanation given to me by Audi San Diego (Valerie from their GM's Office). So I brought my car to the same dealership where I purchased it for service. I asked AUDI San Diego to test my car because I only can get around 45 miles per gallon on hybrid mode. YES! 45 miles not 83 miles not 75 miles! The biggest disconnect for me is that AUDI San Diego service department did not even know that the A3 eTron offers 83 miles per gallon mileage. The sales department is just beside their service department. Perhaps the eTron is still new. The service department said that if I only get around 45 miles per gallon, maybe its because of my driving style and my usage (city/highway/etc). Given I'm the worst driver in the world, my mileage should not be half of what the car claims that it can do. And so I left my car to the dealership so they can test it. And they reported to me that my car can go 44 miles per gallon and not 83 miles as being claimed on their advertising. Valerie from the office of the dealer's General Manager responded to my review at Yelp.com and explained to me that I should be happy with my mileage because based on the report that she got, the eTron should only be running 39 miles per gallon on hybrid mode and my car is running 45 mpg. What confused me is that she quoted and placed the link from plugincars.com. Why she used the explanation from plugincars.com got me confused. Is plugincars.com part of Audi? Does Audi has its own explanation for my concern? She also said that if I have further questions, contact Audi USA. OMG! What is the TRUE Mileage of the Audi eTron - now I don't know.