Well I did test drive loops of both the reg. Highlander and the Hybrid. Did the work-home leg. Wait 20 mins then home-work and back to the dealer which is less than a mile away. Both vehicles were cold and hadn't been driven for 2 days. Temp was 34F, but that was the high for the day and it had been sub-freezing for close to 24hrs preceding the test (10F overnight). Results come only from the on-board computer readings which I know aren't perfectly accurate but they are all I had. Hit all the same lights as luck would have it, although I did have to go through amber for one and slow down a little early to stop at another to keep it even.
Hybrid 10.6L/100km (22.1 mpg) and I forgot to set to ECON mode for the drive from work to home.
Highlander Limited 16L/100km (14.6 mpg).
Both were as expected well below EPA but the relative economy difference was maintained. That would mean about $800 per year gas savings at current prices for us on top of the gov't rebate and tax break. It actually makes the HY financially worthwhile in less than 5 years of use .