Two-wheelers are the latest victim of the fight to get a better brand image for low-cost cars. Industry says cars typically provide a higher level of emissions control than two-wheelers. The limited data churned out by ARAI show that while hydrocarbon and CO emissions from two-wheelers can be as high or surpass those of petrol cars, NOx and particulate matter levels that pose a serious health challenge are several times lower than diesel cars. Moreover, on a per passenger basis, a car emits two times more compared to a two-wheeler and four times more compared to a bus. <br>