I doubt the Sienna would beat the Orlando in real world city driving. In CR real world tests the Sienna got 14/27 miles per US gallon while the Mazda 5 got 15/34. I doubt that they will test the Orlando since it is not available in the US.
Wow they have lead feet. My worst ever in my Mazda 5 is 20 US MPG, that's pure city driving, A/C on full blast all the time...
Also, as you may be aware, the US gallon is smaller than the Imperial gallon, which is used in Canada. From what I have seen, manuals will often do better, despite the government numbers, than the automatics... especially in city driving. On the highway, due to the different ratios, the automatics sometimes do slightly better. I wish my Rondo had a 6 speed manual as the Euro versions do.
I find it VERY VERY odd that you can get a Optima, Sportage, and even Sorento with a 6 speed manual, but not a Rondo. I wanted a Rondo but the lack of manual = no sale. I got a Mazda 5 instead.
I did say 20 US MPG, or did you want me to say 25 Imp MPG?

Ugh I hate MPG, 12 L/100km. Thank you, metric system.
Here's my Fuelly...



I share the driving impressions for Orlando. IMO it's not for someone who likes a responsive car (steering, engine, tranny, brakes) this is why I asked. I found it very comfortable, easy to drive, very quiet and well built. If you drive it like the vast majority of the buyers would, it's a nice car. It does what it supposed to do therefore I'd call it a success for Chevy.
I also found that two average adults can seat in the 3rd row for short trips. I was testing with a friend of mine (average adults) and we didn't rub sholders. The biggest negative from my perspective is the 2nd row bench does not slide. If it would, the access and comfort for the 3rd row would be much better.
I'm 6'-1" 200lb, I sat in the back of my Mazda 5 for an hour once next to my brother in law about the same size... yea. lol. My butt started getting numb by the end of the trip. They way you're seated back there in the 5 and Orlando, you're sitting on the base of your spine basically. That's why really the 5 and Orlando are not 6 and 7 seaters, they're 4+2 and 5+2 seaters. Agreed with the lack of slide though, but in my 5 no amount of slide would solve the fact that you're sitting on your spine, and sliding the seats too far forward and you're staving the second row passengers of legroom. With the Orlando, I found I had enough leg room with the default setting, and actually enjoyed more head room.
I drive like a grandma admittedly to save gas, upshift at 2,250 RPM, I think I

off automatic drivers behind me going 0-60 in 8.1 days.

BUT I do like to take curves a bit quicker than most... braking and accelerating for curves is a waste of gas lol. The Orlando has less body roll yes but I wouldn't be able to take curves quite as quickly. I'd probably have to take it out on a longer test drive to see for sure.
DKaz - what about a Caravan? With the savings on purchase price you'd easily pay for 10 years worth of fuel vs. an Orlando.
My neighbour just bought one of these - I'd rather a minivan! Its just plain ugly - and is it just me or is the second row foot space brutally small? If you need a people mover - buy a people mover take the small hit on fuel economy and be happy with your decision. This is the kind of vehicle that I get the feeling that you'll always have to justify to people - "well ya BUT it gets slightly better mileage than a van."
Actually my third option would be to get a new Mazda 3 Skyactiv and an older Toyota Sienna. The Mazda 5 is too big for us 80% of the time, the right size 10% of the time, and too small 10% of the time. The Mazda 3 could handle the 80%, the Sienna the 20%. Sure it'd mean owning two vehicles but...