an ls/vtec does not have a "respective vehicle" because its a combination of 2 different engines. the 1.8 non-vtec LS block out of an integra GS or LS, combined with the vtec head from a b16a or b18c. and no, an ls/vtec is not a GSR motor.
so i'm confused if you're trying to compare 2 different vehicles, or 2 different engines. but like i said if 2 same model civics, 1 with b16a and the other with ls/vtec, had a heads up race with similarly capable drivers, the ls/vtec civic would win everytime. more power. more torque