Pontiac's 2006 Solstice, a $19,995 roadster, comes standard with an auxiliary iPod jack. The Solstice comes equipped with a 2.4-liter, dual overhead cam, four-cylinder engine putting out 177 horsepower and 166 lb.-ft. of torque. The only available transmission is a five-speed manual.

Tunes come standard via a basic audio system with a single-disc CD player; a Monsoon sound system, six-disc CD changer, MP3 player, and XM satellite radio are all optional. But you don’t have to pay extra for the auxiliary iPod jack – that’s included in the sub-$20,000 base price.