The RL should get it at introduction. If it has a weak beginning, the new RL will be doomed just like the other one. I bet 90% of people in the USA aren't even aware of what the RL is. This is when Acura should get serious....this is the launch of their flagship car, and there's too much on the line to puss out. It's too big of a feature to slip in during the mid-cycle refresh. I think every RL should come with IMA, and they should hype the hell out of the system. Massive advertising......touting it as the biggest innovation in years.