Disclosure: im an automotive mechanic for a chain of midwest shops. Chrysler has been the "frat boy on probation" for nearly 40 years now. Renault was wise to reconsider what they would get. wind back the clock to Daimler Chrysler and youll see there was nothing but mistrust from the start. German execs wanted an inroad into an american market segment that their luxury brands couldnt target at the time, and Chrysler…
Challenger/Charger are FCA's pony cars kept to compete with Camaro and Mustang. Combine the two FCA cars with their sibling the 300 and that was nearly two hundred thousand sales, not bad for an old platform. What keeps them going, they don't get stuck with the same boring colors year to year and get other tweaks people want from them. However they are one of the biggest risk factors for FCA too as they are vulnerable to fuel prices.
Renault simply is not a good fit because getting Renault means taking France too and that would pretty much sink them in legacy costs and employment structures. The better opportunity is to look to both China but locally to move East into the long gone Warsaw pact states.
FCA's real loss was the passing of Marchionne before he could do an orderly and planned handing off control to a picked successor.