Rented from Avis in San Diego, a STANDARD rental (which is still blank in the list here on page one)

Was offered a Hyundai Sonata, declined that as I live in Korea and see and ride in Sonatas all the time--we call them taxis.

Requested a Nissan Altima, as that was my "standard" rental at Budget a couple weeks prior, out of stock. That Altima at Budget was a 4 cyl., btw.

Ended up with a Ford Fusion, 4 cyl. Total dog of a car compared to the 4 cyl. Altima; can't understand its high ratings. Anyway, it's the advertised "standard" car, but my e-receipt listed it and charged it as "full size" car, which is wrong, as we all know.

So, now you have three cars to add to the "standard" rental list. Though two of them are also listed as full-size. Maybe they're allocated to both classes, or the standards are all 4 cyl.