For the 2016 13" MacBook Pro + TouchBar, there are
3 processor options : Core i5 2.9GHz, Core i5 3.1GHz (+$100), Core i7 3.3GHz ($300)
2 RAM options : 8GB, 16GB (+$200)
3 SSD options : 256GB, 512GB (+$200), and 1TB (+$600)
Yes they are limited options, but that's still 18 different...