The phrase "electric version" refers to a modified or upgraded version of something that uses electricity as a source of power or energy. Full definition
As the electric vehicle market has expanded, many car companies have taken the approach of making electric versions of their existing cars. (edmunds.com)
What the company has said is that a plug - in electric version of the car will go on sale in 2014. (evworld.com)
But it will shortly be joined by a plug - in hybrid, and fully electric version. (pocket-lint.com)