Not just any car not from another country. A Foreign Car is an expensive Car, typically from Europe such as Ferrari, Lamborghini, Maserati, Maybach or Bugatti
As the name already says a foreign or foreign whip is a car made made in a foreign country like Germany or Japan. Nowadays its often used in the rap-scene to refer to a expensive and fancy car, like Lamborghini or Mercedes-Benz.
Dude! Have you seen his new foreign car, its super sick!!
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.