First of all plz kindly erase the concept of R grade car that the cost will be low, no R means even a bumper is change "XX" and whole car is genuine then R grade, so plz dont expect that all R grade cars are very cheaper.
@addy80 bhaijaan my personal advise not go for this car because spare parts issue and no resale, i remember the guy he sold his car in almost 03 lack loss yes 03 lacks and he sold it as it is he was begging, better to get Daihatsu Mira or Mira Custom in 660cc or u have an estimate of atleast 08lacks go for toyota Passo or Daihatsu Boon. But for the estimate below is one.
BELOW IS EXAMPLE OF BOTH R GRADE CAR AND 4 GRADE car u can see R grade car is sold for 4,20,000yen while 4 grade car sold for 2,54,000yen.


BELOW IS THE ESTIMATE OF 4 GRADE I-MIVEC if sold in 2,54,000jp yen
a. Auction Price: 2,54,000yen x 1.26= Rs 3,20,040/-
b. C&F Karachi: 1,30,000yen x 1.26= Rs 1,63,800/-
c. Passport: Rs 20,000/-
d. Custom duty on 60 months 660cc old car: USD 1760x96=Rs 1,68,960/-
e. Excise Pay Order: Rs 4,000/-
f. Warehouse charges: Rs 8,000/-
g. Delivery Order: Rs 8,000/-
h. Custom: Rs 10,000/-
i. Custom stamp challan: Rs 500/-
j. Clearing agent: Rs 8,000/-
TOTAL ESTIMATE OF 660CC I-MIVEC if sold in 2,54,000yen=Rs 7,11,300/-
(Note: Total expense on 660cc car excluding amount of a.Auction price : Rs 7,11,300-3,20,040=Rs 3,91,260/-)