The fully electric version of the XC40 SUV will now be called the EX40, while its somewhat lower-roof C40 Recharge counterpart will be called the EC40, Volvo revealed Tuesday as part of a new naming strategy for its EVs and plug-in hybrids. Among Volvo EVs, EX calls out electric SUVs, like the upcoming EX30 and EX90, EC will be used for electric…