A record of 54,492 plug - in cars were registered in 2017 , up 217 % from 2016 .
The plug - in car segment achieved a market share of 1.58 % in 2017 .
A record of 54,492 plug - in cars were registered in 2017 , up 217 % from 2016 , and the plug - in car segment achieved a market share of 1.58 % in 2017 .