What do BMW, Cadillac, Ford, Lincoln, Mercedes, Porsche and Volvo have in common? They're all offering car subscriptions that let drivers rent vehicles by the month for a flat fee that includes maintenance and insurance.
Next week, carmakers will unveil their new models at the North American International Auto Show. Cadillac hopes to make a strong showing in the luxury category, but it's a different story for Ford's struggling Lincoln brand.