Speaking as an AMC enthusiast for over 40 years, it make me "cringe" every time I hear remarks like Chuck 65 made about AMC products, implying that they were some how inferior to other cars of that era.
But it's really not that unusual for people from my generation (& older) to have those very same prejudicial, and misguided attitudes.
In actuality, AMC products of the late 60's and early 70's were engineered, and quality controlled just as well as any cars offered by the "BIG 3".
Every manufacturer had their own problems, and they showed up in one area or another. AMC products had no more, or less. But simply because AMC had an "Under Dog" persona, it was an easy target for those who felt the need to belittle somebody else's car.
It goes without saying that the technology of any American car built 33 years before the first Crossfire would be light years apart. Which makes it even more remarkable that the AMX duplicates the performance (acceleration/braking) of a Limited Crossfire.
Since I'm probably the only one on the forum who owns an AMX, I'm also the only one who knows how well these cars handle on a twisty road. Given comparable tires (along with shock/struts) even with a rigid axle, an AMX would only be marginally behind an Limited XF on a road course.
You can take my word for it, or you can dismiss everything I just said as B.S. Either way, all I can say is that I feel most at home in the Crossfire simply because it reminds me more of the AMX than any other car I've owned, and that's why I'm the most comfortable in it.
Even though an AMX and a Crossfire would never be confused, they do share a few similar "styling" cues. But as much as the Crossfire's roofline matches another AMC offering "the Marlin" that wasn't the designer "Eric Stoddard's" intent.
Listed below is where the Crossfire and the AMX's similarities are the most obvious.

_______________________AMX____vs____Crossfire_____ ______________

Seating capacity__________2______________2________________ _______
Wheel Base_____________97.0"___________94.5"____________ _________
Fr Track________________59.7"__________58.3"_________ _____________
R. Tack_________________57.0"__________58.2"_________ ____________
Length_________________177.2"_________159.8"______ _______________
Hight___________________51.7"__________51.4"______ _______________
Ground clearance_________5.29"__________4.9"_____________ _________
Curb weight____________3035lbs.________3084lbs.________ ___________
Weight distributionF/R%__57/43___________54/46____________________
Trunk space cu.ft.________9.6_____________7.6_________________ ____
Turns lock to lock_________3.8_____________3.1__________________ ___
Turning circle____________33.5'____________32.9'__________ __________
Compression ratio________10.2:1___________10.0:1______________ _____
SAE H.P.________________225_____________215___________ __________
Frontal area sq.ft._________20.6_____________20.6______________ _____
Final drive ratio___________3.15:1___________3.27:1___________ _______
Body construction________unitized__________unitized____ _____________
Braking 60 to 0____________115'_____________114'________________ ___
Automatic trans performance
0 to 30mph________________2.9sec._________2.5sec.______ __________
0 to 60mph________________6.9sec._________7.1sec.______ __________
Manual trans performance
0 to 30mph________________1.9sec._________2.1sec.______ __________
0 to 40mph________________3.1sec._________3.5sec.______ __________
0 to 50mph________________4.5sec._________4.7sec.______ __________
0 to 60mph________________6.6sec._________6.5sec.______ __________
0 to 70mph________________8.5sec._________8.2sec.______ __________
0 to 80mph_______________10.7sec._________10.2sec._____ __________
0 to 90mph._______________13.5sec._________13.1sec.____ ___________
0 to 100mph_______________16.3sec._________16.1sec.____ __________

1/4mile times and speed__14.8sec-98mph____14.8sec-96mph___________