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. Most vehicle manufacturers release new models toward the end of the summer and continue through the early fall months, typically from late July through early October. October 1 is the unofficial launch date for new cars, although many hit the sales lots before this date. Continue Reading.