Actually, they're BOTH mid-size -- in Japan where they come from. Kaya pala nakakalito kasi sa Japan, mas maliit ang classification ng mid-size probably due to their fuel-efficiency focus. (wikipedia)
I agree in other markets, it probably won't even be close to being an exec car (tama na marketing term siya but also used by mags like C! in classifying cars) -- it isn't even priced as an exec car in other countries.
Kaya lang sa mahal ng price sa 'Pinas, car classifications have moved 'up' a little. For example, ang civic dito is priced atUSD 21,000 (mostly due to taxes).

Samantalang sa USA, for exmple, yung 21,000 ay pang accord na at may konting sukli ka pa.
Hope that clarifies things. Iba iba yata kasi ng bansa ang POV eh.