July 2011 sales: 20,884
Change from July 2010: 17%
Lack of production capacity was the only thing holding back the Sonata in July. It has a winning formula: Customers lured by the innovative marketing are captivated by the up-to-the-minute styling and then sold on the appealing MSRP. Hyundai is having its moment in the sun, but it should be wary -- not so long ago, Honda's star was shining just as brightly.
NEXT: Loser: Ford Focus