The upcoming Chevrolet Aveo hatchback replacement has been thoroughly photographed by our spies, but now we have obtained a pair of patent images as well, giving an even better idea of what the production model will look like.

Chevrolet’s Aveo is long due for a thorough reworking, and thanks to Automarket, we now have a sneak peak of the next Aveo hatchback. We also managed to get our hands on some never-before-seen Aveo sedan images, which can be viewed here.

Based on what we can tell from the patent and spy images, the car will essentially be a lightly toned-down version of the Aveo RS show car that debuted earlier this year.

Chevrolet is targeting a more upscale market for the replacement Aveo since it hopes the Spark will take over for its entry-level models. Unlike the current Chevrolet small car lineup, which consists only of the Aveo and Cobalt, by the end of 2011, Chevrolet will offer the entry-level Spark hatchback, an Aveo in both five-door and four-door sedan configurations and the conventional four-door Cruze.

This all new Aveo will ride on GM’s Global Gamma II chassis and will likely go into production later this year at the automaker’s Orion Township, Michigan, assembly plant. In addition to the more aggressive look, the Aveo will receive a much more upscale interior than the current model and more powerful, refined powertrains under its hood. The base engine will likely be a naturally aspirated 1.4-liter four-cylinder capable of 40 mpg, the same unit that will also see duty in the Cruze.

Details are still blurry as to when, but we are told to expect an Aveo with an optional turbocharged 1.4-liter four-cylinder unit with over 140 horsepower appearing for the Aveo RS.