"New Yorker" was an LHS with the split bench seat and column shift, basically.
As they age, as my mother's has, some of the plastic trim looses its adhesive to what it was stuck too. The chrome door exterior trim inset, for example. The instrument panel air bag door wrinkles. The rear deck lid plastic strip "shrinks" enough that it needs to be reattached with molding tape. Just seem to be normal age-related issues. Doesn't make the cars ride/drive any less great.
On her car, with about 100K miles, the BCM seemed to start deteriorating over time. First it was the delay wipers seeming to take a hair too long to change/cycle. Then the a/c stopped working. Eventually, the instrument cluster stopped, too. The alarm system would self-arm, with a longer than normal horn "honk" rather than "chirp". Had to take the battery cable off to keep the interior lights from staying on all night. The BCM is behind the rh kick panel, but I'm kind of afraid to try to pull it off for fear the plastic will crack.
And, an a/c inside/outside door actuator is stripped. Just clicks when you punch that a/c button. Inst panel has to be taken loose on one side to get to it.
There is a Dodge Intrepid website/forum.
When I first rented an LH car, for Mopar Nats, I was totally impressed with how it rode, drove, and operated. So effortless and smooth. Lot of little neat things! Like if you put it in "D", the line pressure and shift points were raised over what they would have been in "OD". Chrysler was so great with ergonomics back then, too! Things you didn't notice until you compared a Chrysler to a competing GM brand, for example.
A "bad" thing is that to replace the rear struts, you have to remove the whole back seat to get to the upper mountings.
A few years at Mopar Nats, one guy had made a 4wd/AWD LHS. There were small rear seats on each side of the rear compartment. The trunk was full of a complete LH 3.5L powertrain, driving the rear wheels specifically. The ECMs were ganged together, as I recall, so the power flow was equal at both ends of the car. Dark tinted rear windows hid the carpeted cowling over the additional rear powertrain items. Looked stock until you looked closer!
The 3.5L V-6 had lots of performance items in it. Like full-floating wrist pins in the pistons. The local Chrysler Training Center operator, who was one of our local Mopar club members, claimed it was easy to get 300 horsepower out of that 3.5L V-6, rather than the stock 214.
One thing, the first-gen 3.5 has a rubber timing belt, so "rubber age" issues can apply!
Enjoy!
CBODY67