There are advantages to the challenger and advantages to a charger. So it depends what your asking.
not really as they are the same frame and engine, the challenger just looks smaller but it really isn't.
4" shorter and 20lbs lighter
For the same models compared: yes
There basically the same car as the challenger is built on the charger chassis. If your talking the current vehicles,Challenge and Charger are equal in speed if you get the automatic. Now if you get the six speed manual transmission in the Challenger, it is faster than the Charger.
The SRT8 (either Challenger or Charger) will be faster than a RT. The SRT8 has the 6.1L Hemi, while the RT has the 5.7L.
A dodge charger would run faster because of its motor and depends on how it was designed.
Assuming you'r referring to the newer models, the Charger is 4" longer and 20lbs heavier
The answer is no, it is not a better car than any Cadillac.
The Top Gear website has a review of of the Dodge Challenger. The US news best cars site says that the Dodge Challenger rates between better than most and about average in reliability.
The 2006 Dodge Charger is much better than the Acura TL given its good fuel economy and horsepower.
Cause Chevy runs deep
Very likely, as there was no 2007 Dodge Challenger.