I know I've heard of one catastrophic failure of a Renesis on the owner's club site, but it was pretty major and clearly a manufacturing cockup. None of the US drivers have reported such failures unless they've been playing silly buggers, like trying to turbo it.
In a couple of years, RX8s are going to be everywhere used. My leasing firm just bought another 70, but they're now £50/month more than I paid for mine because the residuals are dropping, and apparently they reckon it'll drop another grand in April, so another £10-20/month.
I thought the deal I got was stupidly cheap, even with the 190s being punted out by brokers for £2-3K off list.
Richard