I think there needs to be a mix between FWD and RWD vehicles. lets take Chevrolet for example.. of course the Aveo, Malibu and Cobalt remain FWD..
there could be an arguement to shift the Impala to RWD, but i think that would be a mistake. i would keep it FWD it sells quite well in its current form. so id say lets keep the Aveo, Cobalt, Malibu and Impala FWD.. then id convert the next gen Monte Carlo to RWD, this would be a slighly cheaper version of the next gen GTO. and unlike the GTO the new chevy coupe could be had with cloth seats and a standard V6 engine.. id also make a sedan version of this car. probably call it a Chevelle. this would do battle with the dodge charger. it would also be used for taxi and police fleets as well. this new chevelle would slot in between the Malibu and Impala sedans. there also is a case for a new Camaro. this would be a rwd vehicle and would be smaller than the monte carlo. the styling of this new camaro would have design cues of the 67-69 camaro. and would have the same engines as the chevelle/monte carlo. which would be a base 3.9L ohv V6, and with 5.3L and 6.0L V8s as options. as for an assembly location i would probably end up choosing Spring Hill TN. the Ion could be shifted to Lordstown Ohio. and Vue's could roll down the same Ontario assembly line as the Equinox..