esp,make no bones about it..ALL teams have started to work on the 2013 contender already.HRT is late and will stay late as they are recource restricted more than others as they have to first build a facility to work from ...is it possible to start the new car now? Why not .You need not much more than one or two good design engineers who work on the general archictecture and concept .the big issue is they again have not much in terms of information from last years car ,and this years as well as they just had to make it work somehow.
dokumentation? abit of data collected in those four races but how do you translate this into a next years car -when you are 4 seconds of the pace.
Obviously the main parts of the puzzle are not far off :engine ,gearbox ,tyre, brake is close enough for scoring points so you need to analyse where you lose these 4 % and didg in where you think you can gain most for the buck spent.