If it ain't broke don't fix it... there are far better quality radios out there, but do you really need those extra features?
If you decide to upgrade I would consider Radiolink RC4GS:
https://amazon.com/Radiolink-2-4GHz-Transmitter-Receiver-Controller/dp/B07DPMVVKN/
If you think you might get...
Me?
No, I've sold off all my on-road cars many years ago, I only race 1/8 off-road nowadays.
Ever since COVID I noticed that NitroRCX has been having severe re-stock issues, I think the OEM's that were making these cars have suspended operations and haven't made any announcements of when they...
I actually used to race and rented these Exceed cars many years ago, I carried more parts than any hobby shop so I was fairly confident on what I was seeing :)
Not sure what car you have, but kinda looks like a Nanda NRX-10 which has been rebranded from NitroRCX as an Exceed MadSpeed
The part in question is often referred as a spindle or hub carrier where the holes tend to wallow out where the kingpins thread into...
invest in a bunch of replacement spindles, all it takes is one hard wall tap to strip the plastic threads, in a pinch you can fill the gap with a sliver of toothpick, but don't rely on that for a long term repair, replace the plastic part ASAP.