The width converts to about 52.5 mm. This is the scale discussion again.
If you want to fit the Fly car, you are about 10% over width, as mine measures 57mm. But a SW won't fit under a 52mm wide body.
The beauty of 3DP is you can have the car to scale, if you want. In this case, I didn't want....I elected to approximate match the Fly car at 58mm x 148mm. It's oversize but will "look right" with the Fly.
I am going to guess that the 161.9" (which converts to roughly 128mm) is the length of the normal car, not the LH.
On the other hand, it's large compared to the Strombecker. Maybe I need two.......🤔