I have a 2015 Subaru Outback, and while the basic “car” is good, the software in the car is often comical, as in comically-bad, including bugs and poor design decisions. This image shows that my car has gotten 76.2 MPG over its lifetime, which is off by about 50 MPG.
It may be that this piece of data is trying to convey something else, so in that case it would just be poor design and not wrong data, I don’t know. But I shouldn’t have to dig through the car’s manual while driving 75 MPH on I-70 to figure out what this is trying to show. (And this is just one example of the Outback’s poor software quality.)