Somebody posted this thread already...it was quite some time ago, though.
Yeah, the misconceptions and errors in figures are funny.
I can imagine that the RX7 has a funny exhaust note - it's a tiny engine. Now, what Mazda gets (in terms of power - torque is another thing entirely) out of a 1.3L rotary is damned impressive, but don't expect the thing to rumble.
Overall, the RX7 site reads like a lot of others. Some adults, but also many 'I've raced that' kiddies.