hello, have read in the ams the report about the new Q2 system which is installed in the early years in 147 and GT 1,9mjtd, and according to the report the 147 Q2 is not recognizable again. ask me why alfa only now comes with such a system?? a torsen lock differential is not a world first, and ask me what such a differential would bring in a 147/156 GTA or in the GT 3,2? of course a Q4 system is better for the distribution of power, but one should not forget the weight of the Q4 (r and 70kg see 159 3,2Q4), and the Q2 weighs say and write 1kg incredible or?? let’s look at it maybe a later installation is possible or do I lie totally beside it with my idea??? greeting pas.156