The new corolla has more than 100 horses under the hood. I have previous generation corolla, and just bought the new corolla.. new corolla is way faster than the old one... they have changed the throttle response and made the engine more powerful by playing with On board computer. Its not a very tough thing to do. After market kits (like unichip) does that for u in 30k Rs.
But good thing is Toyota has done this to make new car owners feel happier with 1.3 unlike old models who were sluggish especially when u go uphill with AC on.