Those 2 cars, the FOB values are not in the latest customs value list
So exact value has to be get from the relevant agents in SL
Assuming the values are not changed;
Nissan K13 (1200cc) approximately
FOB = 1,150,000 JPY
FREIGHT = 53,250 jpy
Insurance = 3000 jpy
Total = 1,206,250 jpy
Duty = 1,206,250 × 1.36 × 184 % SLR
For SuzukiZ C72S
FOB = JPY 1,300,000.00
Same calculation