images from my many posts on the AMX 3... I hope you take a moment to see the differences in these different models, the bottom one having the coolest looking wheels, but I bet it's a mock up with no real car parts, and it looks like the model is in the design studio for a photo op.
Notice it doesn't have a gas cap like the yellow model directly above it, and the rocker panel is black with the AMX 3 call out looking really nice. Different tailights too.
From the Supercars website story on the AMX3:
Giotto Bizzarrini, of ex-Ferrari fame, was specifically responsible for making a production worthy AMX/3 out of the show queen AMX/2. What would have been a challenging build for AMC, was easily handled by Bizzarrini who was very familiar with race car design
and construction, particularly on a tight budget.
Bizzarrini's final AMX/3 featured the hallmark of sports engineering, a mid-mounted engine and rear transaxle. The Italian firm Melara developed the new gearbox while BMW completed final testing on the roadworthy AMX/3. It seemed AMC was serious about production. From a design standpoint, the AMC/3 was remarkably similar to Ford's DeTomaso Pantera which debuted just one day after the AMX/3. Such timely releases made it unclear exactly who copied who, but in any case, the casual observer can easily mistake the AMX/3 with a Pantera.
Due to the successful launch, and low price of the Pantera, AMC scrapped the AMX/3 project. Bizzarrini was ordered to destroy all six cars, which he, of course, did not.