Lots of choices out there to haul your family but not many that gives you the fun and accessibility of the RX8. I have tried putting a baby seat in Audi TT's, RSX's, BMW 330 coupe's and none seem to work as well and as easy as the RX8. The trunk is a bit small for a stroller but it works. Plus, you can get several golf bags back there. The drive is really comfortable. It takes on bumps really well and can really hug the curves. If you see one used and you are thinking about buying it, check out the MazdaSpeed body kit as a add on. Makes a huge difference in the presence of your car and stands out among other cars. Really sharp. The only thing I would say is get one with low miles.
back doors, speed...the car is faster than you think, test drive one at least before buying another car.
Gas consumption is bad. Clutch is a bit spongy. Bose audio is not very good unless you crank it up. Low volume is muffled a bit.