As we first reported just a few days ago, the Aveo name is being phased out for Chevrolet’s next-generation small car, which we can confirm today will be called the Sonic. Production is to begin in early 2011 at GM’s Orion Assembly Center in Michigan, which is receiving a $545 million investment in upgrades and retooling to accommodate the new car.

With the 2012 Chevrolet Sonic, GM is taking its small car destiny in its own hands, bringing its Honda Fit fighter home to America--at least in terms of design and production. Unlike previous generations of the Aveo, the Sonic will be mostly homegrown.

Additionally, the introduction of a four-door sedan, as well as the regular hatchback, means the new Sonic lineup will stand a better chance competing against the likes of the Ford Fiesta and the hatchback-only Honda Fit. The interior gets Chevrolet’s latest family styling, which sees it share much of its design with cars like the Cruze and Equinox.

Look out for a world debut of the 2012 Chevrolet Sonic at next month’s 2011 Detroit Auto Show, with first sales to start shortly after.

In the meantime, check out our previous spy shot stories on both the new Sonic sedan and hatchback for more details.