Although these cars don't have airbags, they can offer basic safety features.
1) Good disc brakes (inboard in the rear)
2) A centrally located gas tank (safest from a crash perspective)
3) Seat belts

4) Good visibility, from the drivers seat
5) O yeah and mind blowing handling -great for high speed accident avoiding maneuvers!
As far as auto cross and SCCA, you would probably end up installing a roll cage and 5 point harnesses so that helps. But my personal opinion is that for use in those event your best choices would be either purchasing a GTV6 or Milano Verde.
Good luck and this a decision you wont regret! Far better than buying a Porsche!