Production cars have come a long way with the use of Aluminum from the race only Pontiac SWISS CHEESE Cats, Tempests and Venturas with the exception of their aluminum header pipes. LOL.

Note the aluminum caliber body, tie rods, upper and lower control arms and chassis on this current model that was being tested.

Chrysler soon took suit of the weight loss program and the rest is history.

As some may know on here, certain current Chevrolet Z06's have an entire aluminum under structure/chassis.
Now if only Chrysler could stay off the catnip and put me on board to give those porky Hellcats a taste of weightlessness.

Believe you me, it almost happened and it would have been a nasty Alley cat indeed.