Standard mechanical limited-slip differential New Dynamic all-wheel-drive system has a Drift mode Only 800 Stinger GTS models will be built Standard bright orange, with carbon-fiber trim pieces Priced from about $44,000 (RWD) to $46,500 (AWD)   Kia has taken the wraps off the new Stinger GTS, a limited-edition version of its entertaining sports sedan equipped with a mechanical limited-slip differential as standard equipment....