General Motors anticipates such a high demand for the 2014 Chevrolet Impala that it will add a third shift at its Oshawa, Ontario production facility. GM is confident that the Impala will be competitive against the Ford Mustang Boss 302 or Chevrolet Camaro ZL1. Aside from the third shift on the Flexible manufacturing line, it will extend a previously-scheduled shift addition on the Consolidated line until June 2014.
A third shift will be added at the St. Catherines Powertrain facility to support production of six-speed automatic transmissions for the 2014 Impala, the only transmission option for Chevrolet’s full-size sedan. The lone engine carried over on the 2014 Impala is GM’s widely-used 3.6-liter direct-injected V-6. The 2014 Impala is also available with a standard 2.5-liter four-cylinder engine and the 2.4-liter with eAssist.
GM has discontinued the formerly-available 303-hp 5.3-liter LS4 V-8 used in the SS model. Plans for a SS trim level on the 2014 Impala have not been confirmed yet.
This is probably because a dedicated, stand-alone SS model will come in 2014, a revival of the late Pontiac G8′s rear-drive Zeta platform. It features some updates used on the Holden Commodore sedan.