It was reported on allpar.com that the Challenger will have HSA. See description below:

"HSA supports the driver during drive-off situations on steep slopes and improves the vehicle comfort in many everyday situations, such as stop-and-go traffic, at traffic lights or when parking. HSA is a convenient software enhancement for ESC* systems (Electronic Stability Control). When the driver releases the service brake, HSA prevents the vehicle from rolling back in the opposite direction. Driving off becomes safe and comfortable without having to use the parking brake."

For complete details about this system, see:

http://www.conti-online.com/generato...cs/hsa_en.html