Ford (NYSE:F) and General Motors (NYSE:GM) have both lost big money in Europe in recent quarters. The problem is a structural one -- auto sales are at lows not seen in almost 20 years, and there are too many car factories making not enough cars.

Both have elaborate turnaround plans under way, but both would love some help from the economy. April's sales results suggested that things might be stabilizing, but will May continue the trend?

May sales results for all of Europe won't be released until next week, but there are some early signs available -- and it's not looking good. In this video, contributor John Rosevear runs through the numbers we have -- and explains what it means for Detroit's two giants.

Fool contributor John Rosevear owns shares of Ford and General Motors. Follow him on Twitter at @jrosevear. The Motley Fool recommends Ford and General Motors. The Motley Fool owns shares of Ford. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.