New Delhi, April 11 -- On most days in Bengaluru, Bert Mueller could pass unnoticed, except for the auto, which is bright red and unmistakable. Mueller, an American who moved to India in his early 20s, often drives the three-wheeler around Indiranagar, where he lives. Gifted by co-founder Gaelan Draper when he exited the company, it is the only vehicle Mueller owns.