Answer: Difference between in price of a car due to increase in VAT is $375.
Step-by-step explanation:
Since e have given that
Price of car = $15000
Rate of VAT = 17.5%
So, Amount of tax becomes

So, Total Price he has to pay is given by

but According to question,
Rate of VAT = 20%
So, Amount of tax becomes

So, Total price he has to pay is given by

Difference between both the price due to increase in VAT is given by

Hence, difference between in price of a car due to increase in VAT is $375.