here's a good explanation all in layman's terms, complete with flash presentation on how a CVT works, and why it is a revolutionary concept on fuel efficiency.

it also discusses pros and cons of a CVT, like how the auto industry are trying to create a new belt that can withstand high torque ranges.

http://auto.howstuffworks.com/cvt.htm

for the flash presentation:

http://auto.howstuffworks.com/cvt5.htm


the altis E is the entry level version of the corolla altis, while mitsubishi's GLS is an upgrade over the GLX, therefore having better interiors and additional electronics. it's a step lower than the lancer GT though (4g63 engine < which is a step lower than the evolution ).

i'd go with the lancer, primarily because i get more and i love CVT.