No, the RX8 does not have camshafts, therefore it does not require a timing belt.
There is no "timing belt" There is also no camshaft nor any valves. The rotary engine does not use any of the above.
No Cam Shaft; therefore no Belt!
Timing Belt
2001 Mazda MPV does not have a timing belt, it has two timing chains.
The timing is controlled by the computer... so, probably not.
timing belt
timing belt
A 2000 Mazda 626 (4 cyl and V6 engines) has a timing belt.
If you are refering to the timing belt, then there is no belt it is a timing chain and does not need replacment.
No, it has a timing chain....
The Mazda Mpv 2000 timing chain
Belt