The essential differences are that the CJ2+ is equipped with a FADEC, the FMS works out your critical speeds and sends them to the PFD (instead of having to work them out from tables), and you have the option to display approach charts on the MFD.
Pilot workload on the CJ2+ is less, which is useful if planning to fly single-pilot. There is no difference in performance and operational cost.
I believe CJ2+ came in around 2006 but standing by to be corrected. You can recognise CJ2+ because it does not have the thrust attenuator paddles behind the engines since the FADEC can accurately control idle thrust.
Last edited by Trim Stab; 14th Jun 2010 at 10:32.