the correct shape.. I wished that Norev would made this in metal and in moving parts form! I'm looking for someone to do a side by side comparo with the regular body AUTOart version.. then all that said that AUTOart's was perfect when it was way off in a lot of areas..although comparing a widebody to a "regular SEC" isn't totally fair, still points out the basic flaws from AUTOart. Cheers!