He literally forced you off the road. He would have sandwiched you between himself and the railings, with the uneven road surface (including drain cover) underneath your wheels. His words communicate his intent - it was a deliberate act of revenge for being in front of him, on a bike. I hope his employer is looking at this video and considering the image it portrays.
Untaxed since Dec 2017 - should be fined & have the van crushed.