Two entirely different cars but both are an absolute "hoot" to drive
! (IMHO, the best that MOPAR has ever delivered!!)
Somehow, though, I just can't ever make myself take any of the Vipers to a car wash. They've all been treated with loads of TLC and often dusted with a California Duster rather than washed. When washing needed, I use a spray bottle with 1 part Ethyl Alcohol and 4 parts distilled water ( it gets tar, bugs, grime, etc. off without taking the wax off) and dry with microfiber towels. For tough front end bugs, etc., a moistened Bounce sponge (yes, the Bounce fabric softener dryer sponges!) works wonders without harm to the finish or wax.
The Challenger does well in the car wash, but still gets lots of TLC as well.
Just my 2 cents