shouldn't the relationship be the opposite?
cost + tax (omv, etc) + profit margin = selling price mah. From
personal experience, I do know that when it comes to pricing, KM is
more strict and it's not easy to get further discounts from the
listed pricing.
Another reason why Honda cars are generally more expensive -
Options are generally not avaliable. Things like Leather seats,
sports rims, solar flim, ICE, etc etc, are usually offered as
options/freebies by other ADs. KM on the other hand, anything and
everything that can factory fit, they will factory fit - that's why
all Civics come highly-spec-ed, and in the end you don't have to
ask for this and that because anything that you want and which can
be fitted into the Civic, will already be fitted AND included in
the selling price.
In fact from the KM price list I have, only the Jazz has the
options of cancelling your leather seats audio, etc ( minus Leather
Seats, $700 off asking price, minus Audio system, $400 off,
etc).