It looks like Dodge's muscle cars will get a major overhaul in its next iteration as the automaker is apparently planning to give both the Challenger and Charger new platforms in 2021.
According to Automotive News, the automaker originally planned to move the Challenger and Charger onto Fiat Chrysler's Giorgio platform. In the end, Dodge decided not to go with it and will refresh both models for the 2019 model year.
In 2021 however, Dodge will launch new-generation models of the coupe and sedan. Aside from getting a major redesign, the two muscle cars will apparently get the M157 platform from the Maserati Ghibli. This means that the LX family of platforms will be replaced by a more modern chassis.
Since 2006, the Charger has been underpinned by the LX platform which is also seeing use in the Chrysler 300. Meanwhile, the Challenger used to have the LC platform from 2008 – 2014. It's essentially a shortened LX platform and is exclusively available only in the two-door muscle car. In 2015 however, the Challenger switched to the LA platform as it now has an eight-speed automatic.
As for its powertrain, it's highly likely that both will still be available with HEMI V8s, as well as supercharged Hellcat engines. A twin-turbo V6 may also likely be introduced since the Ghibli does make use of one.