MOLTEN ROCK, or magma, and gasses spew from the mouth of a volcano in the Hawaiian islands. As rock inside the earth melts, its mass remains the same while its volume increases--producing a melt that is less dense than the surrounding rock. This lighter magma then rises toward the surface by virtue of its buoyancy.
Although each automobile dealer has the option to release new models at a time it chooses, most companies release new models between September and December every year. In addition, some brands are showcased earlier in summer car shows.
Quick Answer. As of 2014, new models of vehicles begin arriving at dealerships during late summer through early fall each year. The unofficial launch date is October 1, according to Kelley Blue Book, when manufacturers display vehicles at car shows, but many vehicles are released months before. Continue Reading.