[Snake2998]

In my very limited experience of GT40 vs Cobra on track days - the GT40 (CAV) is more forgiving and a lot faster with higher levels of grip and a lot less wind buffeting(zero) and overall less frightening. The Cobra gives more warning that you are over cooking things and easier to steer on the throttle. Both will kill you if you take liberties beyond your skill level. Take your choice!!!
The GT40 is the less visceral experience of the two but still great fun.