There's no "getaway car," man. Give it a rest.
So why was that car: (1) rolling down the Elm St Extension while the JFK Limo was under fire, (2) then parked outside of the "wide open" Huge Gates, (3) in a "NO PARKING At Any Time" zone, and, (4) abandoned in that same spot for 3+ Hrs following the Kill Shot?
This "getaway" car went unnoticed for 62+ years. This "getaway" car is Not on the Wiegman Film. Roughly 20 seconds later, the car is on the Darnell Film. It is no coincidence that NBC continues refusing to release their Original Wiegman Film, and their Original Darnell Film.