The money is still going to an american company.
Also, surprise! European nations often sell their municipal bonds (to fund local projects) to American companies. Using Ford specifically as an example, I know someone who works for a local municipality in Finland and travels to Detroit every so often to sell their muni bonds to the US auto companies.
TL;DR the global flow of capital is absurdly interconnected. Trying to "hurt" a nation by not buying their goods can just as easily hurt your own country.
Car manufacturing is also a rather tough business to be in today - definitely not the money hiding type, but rather the "we build a factory in <insert industrial town with unemployment here> if you give some sort of tax break for a couple of years".