Well, look at it this way, 2003 is true convertible, no limit to headroom, plus newest design is to be perfect driver over all previous vipers, and there are no serious headroom issues unless you are over 6'3" or so in current GTS. But 2003 not released for at least a year, why do you think anyone would know the answer to the question? Although, some of our officers and better connected folks have probably sat in the prototype with the top up, which I guess is your concern.Can anyone help?