The alternatively fuelled vehicle (AFV) segment grew by 19.9 per cent last month to take a record 4.2 per cent market share, according to figures published by SMMT.
Across other fuel types there was a mixed picture with diesel registrations down -4.3 per cent but new car registrations of petrol cars grew 8.9 per cent.
174,564 vehicles left showrooms last month – a 2.9 per cent year-on-year uplift and the highest level since 2005.
Mike Hawes, SMMT chief executive, said: “2017 got off to a good start in the new car market, buoyed by a great range of new models which are safer and cleaner than ever before.
“It’s encouraging to see alternatively fuelled vehicles benefiting from this positive growth, reaching a record market share.
“After record growth in 2016, some cooling is anticipated over the coming months, but provided interest rates remain low and the economy stable, the market is in a good position to withstand its short-term challenges.”