[rdorman]

Safe driver is always a must.

But beyond that. Inpact zones, Bracing in the door is all well and good but must tie into a cross braced area both front and rear. Full height seats with five point harness as a minimum both properly bolted to the frame. Collapsable steering would be nice. Of course a full roll cage or at least a properly built four point (full width) of sufficient height. Windscreen is a tough one. If you are racing, take it off and use the little plastic one. Fuel cell a must. Automatice fuel and engine cut off. Make sure the fuel cell vent and ideally the fuel filler has one way check valves. On board three zone fire system. Gees!!!!! How much money have I spent? Still look like a Cobra? I will slow down a bit and be careful. After all, who was it that survived at 175 crash in Lemans?