Image From the 4G press event (MPG and HP)

If that is correct (and in kW units), the total system power is 162 HP (+ 21% from Gen III).

 

Hope this slide is wrong. 52 mpg combined EPA is far from the promised 10% improvement in the core model.

On this slide the eco hits the 10% improvement mark (12%), but was supposed to beat this, and would guess by more than a smidgen.

 

It will be interesting to see exactly how they get those differing numbers. Obviously weight will have something to do with it, but you can only pull out so much weight. Though imagine if they did an XR3-like version (2 doors, foam core platform replacing rear seat, etc)...

 

I believe that figure. That means Gen 4 down on HP considerably. We know for sure Motor Torque is less too. We have to see in real world how turns out. May be it can match Gen 3 in acceleration, or may be even slower by half-a-second. No wonder Toyota kept mum about the total figure even after several reveals, because that is not a good news.

It seems, Chassis is improved considerably but power was reduced at the same time.
Probably Chassis team and Powertrain team worked in isolation without knowing each other what other party is trying to achieve.

 

The mpg numbers don't seem to have gone through editorial review: there should be some explanation, say "city/hwy/combined".

Also, I've been reading here: the ECO model's improved mpg numbers come at least in part from it's reduced weight putting in an easier mpg testing regimen.

 

Is the 54/50/52 the 17" wheels version?

I would think the non-eco models can come with either 15 or 17 depending on the trim.

 

I am not really impressed !
Yes it gets more MpG but not by much and not as much as promised.
They said "at least 55 MpG" and achieving it by significantly decreasing horsepower doesn't seem to be the "magic" I expect from Toyota .
Any care maker can get better fuel economy by reducing horsepower!
A few people here in Germany who have allready pre-ordered will feel cheated by Toyota because they were told it has 150 hp !
I guess there is the possibility that image has been photoshoped but who knows ?
If you close up on the image the second "1" of 121 seems smaller then the first "1" and also the "5"es look different to one another so maybe sombody tried to be creative....
The "m" of "improved" also looks kind of crooked and so does the "r" !

 

This is really bad and somewhat very disappointing news !
That dammed "Staff Manual" was right after all .
I hope the 121 hp at least feel like 150 and if they also reduced top speed then I probably should be thankful to Toyota for saving me a lot of money !
Where is the achievement they made with the new power train ?
Just 2 combined mpg more than current model ?

 

From the Toyota October 13, 2015 U.S. press release:

Toyota has made significant improvements in its new generation full hybrid powertrain, reducing losses, redesigning and relocating key components and reducing weight. Extensive changes to the transaxle, engine and combined hybrid system, generate an expected 10 percent improvement in EPA estimated MPG on core models, with an Eco model that will achieve an even greater improvement.
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Something is not right here.

 

It's possible Toyota's internal testing was optmistic, or they were bluffing to garner publicity.

 

I think this just goes to show that the HSD improvements are nearly maxed out and there's not much more that can be done to improve the mpg figures. Let's face it, this set up has limitations and the Gen III was near the top of its limits.

 

But the Gen III is rated at 50 combined.