I have an RX-8 that I picked up in April as a summer/fun car and less than 2 weeks ago I picked up a MS6. Yes, the MS6 is faster with no mods. Yes, the RX-8 handles oodles better on curvy roads than the MS6. Yes, the RX-8 has little room and crappy gas mileage (best I've gotten is 20 mpg). Also, I have had people in the back of the 8 with no problems in terms of fitting. I wouldn't suggest a 5 hour trip but tooling around town, it works fine. And the suicide doors work to your advantage. To be fair with mpg, my first fill up in the MS6 I got 19.9 mpg... You can mod the heck out of an RX-8 easily, which I've dabbled in. I can't seem to find as much info, support, or options for the MS6 and it's actually kind of frustrating. With any forum, you have to weed through a bunch of crap but you're going to find that here and at the RX-8 forum. Another comment about the RX-8 is that they extended the warranty on the engine core. I guess I'm not doing much good telling you to get one over the other because obviously I didn't make that decision. I have to say that the RX-8 is still my first love. It is an amazing car which I'm sure some others will agree with but you really need to get what's best for you.
That's my 2 cents.. hope it helps.
