No, it wasn't supercharged. I didn't expect too much of a difference (this is probably dumb mathematics) because of this :
Scion Tc : 160 hp, 2.4L, ~3000lb
Mazda3 s : 160 hp, 2.3L, ~2200lb
And yes, I'm looking for some low-end torque. I really dislike not being able to get to the 55mph speed...