Ferrari has a standard ex-factory price, but these vary slightly from countries to countries depending on the additional coformity requirements of the country. It's the duty, total duties including import duty, sales tax, GST or VAT etc that makes the showroom price of the cars differet from country to country.
Japan has the lowest I think, 5 or 6% duty. So chethe websites in Japan. Don't know any though but I have mags but they're in Japanese. Ironically all imported sports cars are in LHD despite the country is on RHD. So you'll be all right if you get a Ferrari from Japan.