According to Bosch plug-in vehicles and hybrids will only make up 9 percent of global auto sales by 2020.

Still a wild card

A long road ahead for plug-ins and hybrids

By 2020, Nissan believes electric cars could achieve up to 10 percent marketshare, while Ford and Toyota believe their hybrid cars could make up as much as 25 and 30 percent of share, respectively.

Automotive supplier Bosch, however, expects just 9 percent global share for hybrids and EVs.

Every year Bosch is investing over $500 million in electrification technologies, and the automotive supplier now offers a complete product portfolio for hybrid and electric vehicle powertrains, including a growing focus on lithium-ion batteries. Nonetheless, by 2020, Bosch believes hybrid vehicles will make up just 6 percent of global market share, while plug-in hybrids and EVs will make up 3 percent of share, although the company also suggests that “future legal requirements, rising fuel prices, and progress in battery technology” could alter this prediction.