A bench of justices G Rohini and R S Endlaw was told by the Centre that they are not replacing three wheelers but are giving a better option to the public for improving intra-city transportation.
"Quadricycle has a number of advantages over auto rickshaws in terms of safety. It (quadricycle) has the provision for safety belts for drivers and passengers. It has two head lamps to enhance front visibility. The four-wheeled vehicle may ave better stability as compared to three-wheeled vehicle.
The counter affidavit was filed through central government's Standing Counsel Monika Arora on the plea filed by two Supreme Court lawyers, Kirti Mishra and Arvind Sharma, who said though quadricycle is used in many parts of the world as personal transport vehicles, they have proven to be "unsafe on many parameters".
The quadricycles have a hard top and doors and are largely expected to replace the auto-rickshaws.
The petitioners have contended that the Centre, before issuing its February 9 notification, should have considered and implemented the safety measures suggested by an expert committee.