You may be correct.
We had a FIAT X1/9 back in the mid 80’s.
The battery was in the front and engine in the rear. So there was a long battery cable running under the body tunnel to the starter.
We had a floating ball compass on the dashboard, and every time we started the car the ball would rotate to align with the battery cable instead of the North/South axis.........................
FIAT X1/9.
Oh man, that takes me back...The Wedge.