At the ongoing LA Auto Show, Chevrolet announced the addition of two new sedan models to the 2014MY Sonic lineup, including the RS and Dusk, with both scheduled to go on sale in the U.S. in spring of 2014.

Priced from $20,945 including destination, the Sonic Dusk is the production version of the concept model of the same name displayed at the 2011 SEMA Show, and comes with a light assortment of styling extras and an exclusive to this version Ashen Grey Metallic.

More specifically, there’s a matte appearance on the upper and lower grilles, door handle inserts and rear license plate trim, stainless steel lower window moldings, a ground effects package, rear spoiler, 18-inch aluminum wheels with a Midnight Silver matte finish and four-wheel disc brakes. In the cabin, Chevrolet has added Jet Black leather-trimmed seats with sueded microfiber accents and Mojave tan inserts.

Power comes from a 1.4-liter EcoTec turbocharged engine rated at 138 horsepower and matched with six-speed manual or automatic transmissions, with EPA-estimated fuel economy ratings of 29 mpg city and 40 mpg highway for the stick shift model.

The second car is the Sonic RS Sedan that joins the already available Sonic RS hatch. It will retail for $20,530 including $825 destination and is also powered by a 138HP 1.4L turbo engine, but comes with unique transmission gearing in the six-speed manual, or a 3.53 final drive ratio for automatic-equipped models, along with a sport-tuned suspension and lowered ride height

Other features include aluminum sport pedals, sports leather steering wheel with contrast stitching, leather-appointed front bucket seats with red RS accents, a tweaked front bumper, chrome exhaust tip and alloy wheels.

The Sonic RS sedan will come in three exterior color combinations named Black Granite Metallic, Silver Ice Metallic and Summit White, all with Jet Black leather-appointed interiors.

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