Well they need to get a move on, it needs to be out this year and to be honest, it could really do with being out and clear for the start of the summer; its needs the press.
Its about a rolling product release (or should be), Toyota used a process with their cars over a period of time.....look another Toyota, look another Toyota again, over time they got publicity from the press in terms of covering the new car (saves advertising) and it was constant so it constantly got that and people thought it was an "innovation" automotive company (even though its not).
JLR need to constantly brand build, they cannot afford to do anything other, therefore they need something out before summer hols and something then at the end of summer and something again in on the run up to Christmas; they need to keep that progress going, otherwise they will struggle and the XF becomes wasted and they all need to be very good......if they are not, they are in bother.
This new XJ is a stop gap as much about establishing the brand as the car; they then need the Coupe and they need the LXR Freedlander thing to be out.......they then need a the green tech. and they need (in my opinion) a new X Type and they definately need a new XK.....and that is six years work.
Then over the next six years they repeat with a mix of facelifts and new models and then that is 12 years work......no offence but its 12 years......and it will be hard work......if they slip it will be 16 years....if its 16 years they are in trouble again....its just how it is.......I hope they succeed.....but the road for them is long and anything could (good/bad) happen....but its 12 years hard work; they need to keep working very hard indeed.
Ps; I have still not looked at the solar panel calculations (but will do) and I will also look at the areodynamic calculations re. Orangewheels...a bus is like a motorbike?