The Limos aren't the same, Connally is lower and further back, perspective can be your friend.

JohnM
The bullet still goes to the left of JBC's mid-line. You would have to put JBC's right armpit to the left of the centre of the jump seat in order for it to begin to work. Here is the trajectory based on a scale 3D model of Dealey Plaza and the limo with the limo and occupants in positions consistent with frame z197.

But your "SBT Fact" has more than just trajectory problems. It does not fit with:
1. at least 22 witnesses who said that JFK reacted to the first shot as if he was hit by it. Not a single witness said he waved or smiled afterward, let alone for 3 seconds.
2. at least 40 witnesses said the last two shots were perceptibly closer together than the first two. 6 thought it was the other way around.
3. dozens of witnesses put the first shot after z190, including two photographers (Hughes and Betzner), occupants of the VP car and VP security car, and witnesses standing on Elm St.
So as far as the SBT being a "fact", it isn't. It is a theory. And it is a theory that does not fit with a great deal of consistent independent pieces of evidence. There is a much simpler explanation than the SBT that fits with all the evidence, including the overwhelming evidence that Oswald was the only shooter. Three shots, three hits, one shooter. .