I am looking at building an ITS car and was going to build an RX7 until I noticed a rules change (weight reduction). I am very familiar with the rotary engine (running a RX2 in EP and RX3 in ITA), but with the weight adjustment the RX3 lost its advantage in ITA. There are enough RX7 already out there in both ITA and ITS. As I have been looking at other cars and reading some of the topics/ posts on this forum I believe that the 944, 944s, or 924s would be the best car for ITS. My question is which model would be the best to build and why? Are there any advantages over the different models? Looking at the NASA and PCA rules the 924s looks like the model with the most modification. I am not that familiar with Porsches and was hoping for some insight from those who race these cars. Thanks in advance