I am heading on down to pull-a-part this weekend to go pull some wheels off of a junker ($14 per rim with tire). I need a tire/wheel combo for autocross so I don't keep burning up my street tires. So my question is what is a good, lightweight set of oem rims that will fit the rx8. Cars I am aware that will fit are:

All 5 lug hondas
Mustangs
350z's
Maybe s2000's

Obviously though, stock rims off of a honda will be the easiest rims to find but they need to be relatively light.

So what else will fit?

 

s2000 rims are 16". You will have a hard time installing them on an MT rx8.

 

i believe the g35 wheels fit, but good luck finding them at pullapart.

edit: here's a short list of cars with 5x114.3
Acura TSX
Chrysler Concord/Intrepid
Dodge Caravan
Ford Mustang
Honda Accord, S2000, CRV, Civic
Hyundai Tiburon
Infinity G35
Mazda 3, RX8
Mitsubishi Diamante ('99+), 2G Eclipse, 3000GT
Eagle talon 1990-98 Base, ESI, TSI Models
Nissan 300ZX, 350Z, Altima, Maxima, Quest, 240sx
Toyota Camry, Avalon
Lexus ES300, ES330, IS250, IS350, GS300, GS400, LX470
08+ Scion xB

you'd be much more likely to find some of those cars

 

2004+ are 17s

that said... still not a good choice. Staggered (7" front, 8.5" rear) and almost FWD offsets...

 

Mazda6 wheels are also interchangeable with the '8, although typically 17".

 

I have an auto with 16's on it right now so 16's are not a problem.
I hate to say this but it sounds like trying to find a set of mustang rims would be the best...
either that or some rims off of a rwd honda.

 

Yes, on a base auto without the Sport Package. The 16" rims on your auto will not fit the base MT Rx8. Brakes are too big.