The daytona shelby was a good car "for its time". Comparing what chrysler made back then to say a new SRT.challenger is apples to oranges. It was a different time. Car management computers were primitive, and the 70s gas shortages were still close in peoples memories. I owned an 88 shelby z turbo ll T top car back when new. Nice car, fast, handled, got great mileage too. I still have one now.
In 1984 chrysler introduced multiport FI turbo engines. In 1984 GM had the 305 with carburetor, ditto for the 5.0 mustang. A lot of what they introduced was way advanced compared to ford and GM of the same time frame. I would have to respectfully disagree with your comments on 80s chrysler products.
As part of the government guaranteed loan they recieved they were required to make a large majority of their passenger cars fuel efficient. This was a major reason for fwd and K car derivatives. They worked within that constraint to make some decent cars.