Hi All. I am shortly buying a new car as a company car replacement (opted out of CC scheme). I will be doing around 20k miles per year and it needs to be a good size with great boot access. To me, this says C class estate or E class estate. Either option would (I think) suit me well and would prefer the 220Cdi engine. I gather that the engine became a bi-turbo after 2012, along with maybe some other changes too?? Would I be better going for a newer (2012 on) model with 120,000 miles or so, or an earlier model (say a 2009) with 60,000 miles on it? What are peoples thoughts??