Last year, General Motors (NYSE:GM) saw its U.S. market share fall to lows not seen since before World War II -- the result of a tired product line and lingering resentment from the company's 2009 bankruptcy and bailout.

But this year, things are picking up. A slew of new cars and trucks is helping -- but so is another factor, related to the timing of GM's leases. In this video, Fool contributor John Rosevear looks at why GM's past leases are bringing a slew of new customers to dealers now -- and at how that plays in to GM's U.S. growth plans.

Fool contributor John Rosevear owns shares of General Motors. Follow him on Twitter at @jrosevear. The Motley Fool recommends General Motors. Try any of our Foolish newsletter services free for 30 days. We Fools don't 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.