Don't know about the Colorado but the Challenger uses Triton running gear, so yes its rubbish. ( I own a Triton) 
When you make a statement, it's best to say why ?? let us know why you think this ??
I own a Challenger, and although the quality may not be as good as a Prado, for the money, it does everything I've asked of it...
In 3 1/2 yrs it hasn't had a spanner on it....so I can't complain...
How many other people buy a brand new car and don't have one single problem with it ??