Here's some good news for the people of Kathmandu: environment-friendly cars are being introduced in the city. Manufacturers say once the cars with duel-fuel system liquefied petroleum gas (LPG) and petrol starts to ply, vehicular pollution will decline. Surya Auto Mechanical Works had successfully tested the Italian Lovoto auto-gas apparatus on its car some eight months ago. Now the company is trying to replicate the technology primarily in local taxis. Besides being environment-friendly, LPG-powered cars are more economical and increase the longetivity of the engine.