Pawan Goenka (C), president of Mahindra's automotive and farm equipment sectors, stands next to Mahindra's concept electric sports car 'Halo' after its unveiling during the Indian Auto Expo in Greater Noida, on the outskirts of New Delhi February 6, 2014. Mahindra and Mahindra Ltd, India's largest utility vehicle maker, and unit Ssangyong Motor Co Ltd will launch their first jointly developed engine in the first quarter of 2015, a senior executive of the Indian company said. REUTERS/Adnan Abidi (INDIA - Tags: TRANSPORT BUSINESS)