I know Live for Speed is an online racing simulator, but has DEVS ever wondered about creating 20-XX hour lenght Carrer mode? Don't think it will take a long time to code it, but would be lots of fun. Offcourse not like "training" sessions that we have currently, where you can't even touch your opponent, but real racing with AI. AI is now improved, so they can be raced, and they are challenging.
(a bit off-topic) I love Gran Turismo, and it has great ideas, like licences in order to race an particular event and/or car.
Carrer may start with UF1000, and finish with open wheelers. During Carrer you would race almost every car.. Don't know if there's much more to tell, there may be tons of ideas to expand Carrer mode, would raice LFS's respect a bit more.
Just a thougt, don't judge, just my opinion.