You have to be careful how much you improve in each iteration as you may run out of things to improve but I guess that is what we think every time you build a new car.
With the quality of each build my guess it that the next car has already been conceptualized during this build and will be ironed out after Hellfire has a few days at the track.
Amazing work, you definitely set the bar and inspire everyone in this hobby.
Keep up the killer work, cant wait to see a head to head between Hellfire and the new Z-28.