What's your experience with the charge capacity of the hybrid battery? If you are running on battery only, how long does it take for it to run down from full to zero? It probably depends on alot of things, but roughly, it took me about 15 minutes, in morning rush hour traffic. It wasn't stop and go, stop and go...just a slow steady speed.

 

On electric power only it takes about 2 miles to fully discharge the battery on the level surface. If you were able to travel 15 minutes, you must've been traveling 8 miles per hour.

 

That sounds about right, it's pretty much bumper to bumper from the merging of 2 major highways.

 

I am pretty impressed with how well our RX does in stop and go traffic with the A/C on. Would love to try the 450h.