4. Multiply the total difference by each other:
2 or 4 doors is 2 options.
4 or 6 cylinder is 2 options.
8 color options.
Total possibilities: 2 x 2 x 8 = 32
5. 1st letter is either K or W , so 2 choices.
2nd letter 26 choices.
3rd letter 26 choices.
4th letter 26 choices.
Total combinations: 2 x 26 x 26 x 26 = 35,152