Answer: 1.33-inch wheels
Step-by-step explanation:
The scale factor is 1 : 12. (i.e 12 inches on the actual is represented by one unit on the scale model)
So, If the actual car has 16-inch wheels,
The size of the wheels on the scale model will be 16-inch / 12 = 1.33-inch
Thus, Thom's car will have 1.33-inch wheels