Join Date: Aug 2011
Location: Albuquerque, NM
Ferrari Life Posts: 11,881
All those questions are answered in the 575 Technial thread, but here is a list of upgrades so you can see for yourself.
135171 is a Nov 03 MY 04 and 141041 is an Apr 05 MY05 to give you a feel for model years. Note the F1 ECU/TCU for the 03 and 05 are identical, but a new F1 hydraulic system was introduced at Transmission 1869 somewhere during MY05 production. Should not have made much difference in feel on shifting, but the later cars had many, many mods including new shocks and mounts, steering position sensor, etc, that may have changed how you perceived shifting. Could be the 05 F1 system was better maintained, too. HGTC models did have a faster, smoother F1 TCU, but FHP cars came with whatever TCU normal cars had.
Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125
Every day I look around, and if nobody is shooting at me, it is a pretty good day.