I was involved with LMES development to a degree so I can probably best answer the question.
It was decided that LMES would feature cars and liveries from the period of 2002-2004, hence why you see Bentley's mixing it with Audi's. The DBR9 made it in due to the amount of people who wanted to see it.
You gotta realise Matt (Simons) does all the template work for the LMES carset and it would be unfair to ask him to carry on creating template after template. If he'd carry on, LMES would never have been released. lol
As it stands, there is a HUGE selection of cars in LMES and granted they may not be up-to-date but they are certainly well known.
It's really a shame that Sharky doesn't get on the forums except for weekends during these school days though. I'll have to tag that post and bring it back up on race weekend for more entertaining conversation.
Of note:
Ancient series from the days of yore.
A jillion different combinations of parts. (although I think LMES has more)
Quali very interesting - in the sprint races, it's determined by practice times (now OE and that steering wheel error really sucks >_>) and feature race is the finishing grid from the sprint race (think A1GP)
Varying setup options?? (i.e. different parameters for each car) Oh, and setting up the car sucks.
I'll have to tag that post and bring it back up on race weekend for more entertaining conversation.
