Nissan intends to double the number of engineers at its Chennai R&D centre to about 4,000, and produce its first "made-in-India" car in the next five to six years.Nissan intends to double the number of engineers at its Chennai R&D centre to about 4,000, and produce its first "made-in-India" car in the next five to six years.Nissan intends to double the number of engineers at its Chennai R&D centre to about 4,000, and produce its first "made-in-India" car in the next five to six years.