Mrs. Donatello shoots Scruffy with a silenced revolver. Revolvers can't be silenced. This is a common TV/movie prop mistake.
During a car crash, a car explodes into pieces. While it is possible for a fuel tank to ignite, petrol is not explosive.
During the opening scenes of the episode, there is a "Sumitomo Bank" sign in the background. Sumitomo Bank was never located in New York City, but in Los Angeles.