Rare and variation Hot Wheels

I recently uncovered a collection of Hot Wheels owned by a former Mattel employee. This is a special collection. In fact, the owner was the one in possession of the four Chevy Monza 2+2 Winter Balls that appeared on the market 4 years ago. I will be posting more photos, but I am curious to the Ford Escort Rally. This is a Final Engineering Pilot (FEP) shipped stateside for quality checks. It was blistered to a Pontiac Fiero 2M4 card. Also, I have found two variations on the two in the collection: (1) 5SP tires are on these models verses the Lace Wheel or Wire Spoke wheels released for the public and (2) on the passenger side door, a white Monte Carlo tampo is on the bottom of the door verses an all black tampo. From my research, I have found this feature exist only on the drivers side door. Any thoughts? The collection currently has two of these cars. The car is coded 18143.