(1) In this section -
'electric vehicle' has the meaning assigned to it by section 121;
'gross vehicle weight', in relation to a vehicle, means the weight which the vehicle is designed or adapted not to exceed when in normal use and travelling on the road laden.
'van' means a mechanically propelled road vehicle which -
(a) is designed or constructed solely or mainly for the carriage of goods or other burden,
(b) has a roofed area or areas to the rear of the driver's seat,
(c) has no side windows or seating fitted in that roofed area or areas, and
(d) has a gross vehicle weight not exceeding 3,500 kilograms.
(a) In relation to a person chargeable to tax in respect of an employment, this section shall apply for a year of assessment in relation to a van which, by reason of the employment, is made available (without a transfer of the property in it) to the person and is available for his or her private use in that year.
(b) In relation to a van in respect of which this section applies
…