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Chevrolet Performance worked over the Chevrolet Sonic just for this year's SEMA show to create this B-Spec racecar concept. Built to conform to all of rules and regulations of the B-Spec subcompact classes in both the SCCA and the Grand-Am series, the five-door features new coilovers on all four corners with revised mounts, adjustable front stabilizer bar links and a rear axle shim kit. The requisite air inlet restrictor has also been shoved in place, and the ECM and EBCM have been recalibrated