News Source: autoblog.com

Chevrolet has rolled in to Sao Paulo this year with not one, not two, but four new concept cars. Only by concept cars, in this case we mean concept versions of existing production models.

Arguably the most exciting among them is the Onix Track Day concept. It's based on the Onix hatchback which GM offers exclusively in Latin America (not to be confused with the Peugeot Onyx concept). This Onix has been upgraded with a full aero kit, enhanced interior equipment and a 1.8-liter Ecotec engine with optimized ECU and stainless steel exhaust to churn out over 150 horsepower – which may not seem like much, but is far more than the hundred-odd hp offered in stock trim. It's joined by a second version called the Onix Effect that also gets a sporty (if more restrained) look.

Alongside the pair of Onix concepts, Chevy is also showcasing a pickup called the S-10 High Country that applies a similar treatment available on the larger Silverado High Country but to the overseas Colorado (which carries the old S-10 moniker in South America). Finally there's a subtly upgraded version of the Cobalt sedan on show as well, and you can scope out images of all four in the gallery above along with the original and translated press releases below.