When was the last time you heard a car collision where the two vehicles get entangled together? That's Hollywood physics.
Car collisions aren't even remotely similar to ramming attacks because, among others things, cars don't have pointy bits which are deliberately rammed in the bodies of other cars during collisions. The fact you think a car collision is good model for a ramming attack suggests you having no real understanding of the issues involved here.
In
history, as opposed to what ever fantasy world you've been researching in, withdrawing after a ramming attack has been critical. CSS
Merrimac came within minutes of foundering when, after ramming USS
Cumberland and that vessel beginning to sink,
Merrimac was unable to pull her ram bow clear of
Cumberland's hull. It was only that fact that the ironclad's ram broke off which kept from sinking along with sloop.
From the classical era up through the 19th Century and beyond there are many other examples of ships ramming other ships, deliberately or not, only to be dragged down by their victims because they were unable to withdraw in time from the other vessel as it sank.