BEV is a common abbreviation for 'Battery Electric Vehicle'.
A BEV is fully electric vehicle, meaning that it only uses power stored in its battery to power an electric motor. Not to be confused with hybrid power (HEV or PHEV), which uses both an electric motor and a conventional combustion engine.
In the UK new BEV sales are now more popular than plug-in hybrids due to their cost efficiency, greater simplicity and less overall running costs.