Final answer:
If new technology allows cars to be produced with less aluminum without affecting safety, it would cause the supply of automobiles to increase.
Step-by-step explanation:
When new technology allows cars to be produced with less aluminum without affecting safety, it lowers the cost of production. As a result, car manufacturers can earn higher profits while selling cars at the same price. With higher profits, car manufacturers will supply a higher quantity of automobiles. This shift in supply is represented by a rightward shift of the supply curve, indicating an increase in the quantity supplied at all prices.