Thanks Andrew. I will see what I can do with your requests. First, here is an image from approximately directly overhead that shows the two figures and their positions. The limo is positioned so that it is going down the slope of Elm Street at the Z161 position. So this isn't exactly at the same angle as directly overhead, but it is reasonably close.
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I compared your overhead to Jerry Organ's model by overlaying them, keeping the right front door handle in the same position in both. Since your overhead is not an orthographic projection the ends are a bit different but the middle should not be affected very much. Here is what it shows:
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The main differences I see:
1. slope of the side windows on the roof support
2. front to back distance of the back seat.
3. front to back and lateral position of JFK
For some reason you have JBC and JFK crossing their legs, which looks odd and unnatural to me, especially for JBC whose knees were elevated as his jump seat bottom is mounted on the floor.