Well, the Prius Prime is similar but smaller, I think it's glued together pretty well. It does what you expect, around town performance is quite good in electric mode, (I'd say better than in hybrid mode), and it get fantastic mileage. I don't see why the RAV4 should not be similar.I'm also concerned the Prime will be lesser than the sum of its parts. We'll have to wait for legitimate reviews from MotorTrend, R&T, and Car & Driver, but I suspect it'll be a somewhat disjointed driving experience with inconsistent power and fuel economy, heavy FWD bias, multiple power sources, and an eCVT gluing it all together.
The Prime was going to be a stop gap for me until pure EV tech improves. I don't feel like I'd be getting good value at this price point.