Car crash usually means an RTA. I accept that's not a hard and fast rule. The BBC called the Finsbury Park Mosque attack an attack. This is a 'Car crash'. Why not an attack?
Westminster car crash: Man arrested on suspicion of terror offences
The police are calling it a collision in their statement
Statement from Assistant Commissioner Neil Basu in relation to this morning's incident in Westminster:
At 07:37hrs a silver Ford Fiesta was involved in a collision in front of the Houses of Parliament.
That vehicle collided with cyclists and pedestrians before hitting a barrier and coming to a stop.
Statement from Assistant Commissioner Neil Basu regarding the incident in Westminster
Seems a reasonable description of what happened...