Toyota’s new Prius model to get record 40 km per liter

Discussion in 'Gen 4 Prius Main Forum' started by Tideland Prius, Jan 20, 2015.

  1. Emcguy

    Emcguy Member

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    A battery is a type of fuel cell.

    I think the outlander PHEV is rated 1.9l/100km here so 2.5 out of a stock prius would be truly amazing. I would almost struggle to believe it.
     
    #21 Emcguy, Jan 21, 2015
    Last edited by a moderator: Jan 23, 2015
  2. wjtracy

    wjtracy Senior Member

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    I keep thinking CARB-certification design in all USA Prii knocks down the first 5 minutes MPG more so.
     
  3. The Electric Me

    The Electric Me Go Speed Go!

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    All I'm going to say, is that level of improvement in fuel efficiency would certainly tempt me to look at the next Gen....

    Damn you Toyota!
     
  4. SageBrush

    SageBrush Senior Member

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    From greencarcongress:
    IF the new Prius' fuel economy is based on JC-08, the improvement is from 3.7 to 2.5. That is hard to believe.
    Perhaps based on the 10-15 cycle, the improvement is from 2.8 to 2.5 which is a 10.7% improvement. That I believe

    If the fractions carry over to the EPA, fuel economy will be ~ 55 MPG/gallon
     
  5. Jeff N

    Jeff N The answer is 0042

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    Bzzzt.

    First, you're quoting an article from 2007 about the 2nd generation Prius, not the present 3rd gen car.

    Green Car Congress: Prius Certified to Japanese 2015 Fuel Economy Standards with JC08 Test Cycle

    Second, the article's statement that the [2nd gen] Prius got 26.9 on the JC08 test was a typo. The author meant to write 29.6 (or 70 mpg US, not 63.3 mpg) which you can see in his link to the Toyota source document (you don't need to read Japanese to see the 29.6 rating there).

    http://www.toyota.co.jp/jp/news/07/Aug/nt07_044.html
     
    #25 Jeff N, Jan 22, 2015
    Last edited: Jan 22, 2015
  6. SageBrush

    SageBrush Senior Member

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    Oops, right you are.
    This article
    Japanese ratings call Prius world's most efficient car, 89.4 mpg (US)!
    says 3.07 L/100km for the Gen3 on the JC08 cycle, so 81.4% as much fuel per distance for the upcoming Prius.

    That might translate into 60 MPG EPA if the fractions hold. GO TOYOTA!!
     
  7. bisco

    bisco cookie crumbler

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    couple this with a 25 mile battery and your back in the drivers seat.(y)
     
  8. Sergiospl

    Sergiospl Senior Member

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    Let's say if:
    Prius 1, 2 - come standard with Nimh
    Prius 3, 4, 5 - come with standard with a small Li-on battery, say 15 ev miles and 55 combined. Those who do not charge will still get good mileage. 60 mpg sounds great, but frankly 55 mpg (10% over current is fine), just put a plug in the thing after 55.
    MPG.png
     
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  9. Tideland Prius

    Tideland Prius Moderator of the North
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    Good point. It could be a translation thing (I assume it's written in Japanese and someone that knows both Japanese and English wrote the English article).

    It's under the (still) lenient Japanese JC08 cycle. (An improvement over the old 10-15 cycle). That's why in the first post, I just took the fractional improvement and just simply applied it to the current U.S. EPA's rating of 50 US mpg combined.

    If the 61mpg holds true, that's 3.8L/100km combined. There'll be rounding errors and testing differences of course but this is the only rumour we have other than what Ogiso-san said earlier about a "10% improvement from each generation" which lead the media and other speculators to estimate 55US mpg combined as the targeted number.

    I was hoping Toyota would get 60mpg city in the Prius c but they "only" managed 53mpg (and still 50 mpg combined because of the lower highway number than the Prius Liftback). It's gonna take a lot of knowledge and exercise in friction reduction and aerodynamics and weight to get a car of this size to hit 60mpg. (Not to mention ever stringent crash test and safety measures that need to be taken into account and people now expect more luxury features in the Prius).

    Toyota needs a weight reduction but it'll be hard. It's easy for other manufacturers to advertise large reductions "200kg weight savings over the previous generation" because the previous generation of Vehicle X is portly from the bloating of the 2000s. The Prius isn't particularly heavy (sits between the ever burgeoning compact and the "holding the waist size" midsize class).
     
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  10. SageBrush

    SageBrush Senior Member

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    A commonly held opinion these days is that N. American shale oil is responsible for the very welcome drop in world oil prices. I'm sure it is at least partly responsible, but less well appreciated is that the new production ~ 5% of world-wide production.

    So, we *love* shale oil for its effect on oil prices, but poo-poo a 10% improvement in car fuel economy ?
     
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  11. vinnie97

    vinnie97 Whatever Works

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    Whatever the cause(s), I think it's an awesome combination. If these 60 mpg projections hold, it does forestall full EVs now until that range is sorted (read: increased).
     
  12. cycledrum

    cycledrum PSOCSOASP

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    I'm interested to see what the 4th Gen Prius is to get a glimpse of what might be coming in next generation HyCam.
     
  13. bisco

    bisco cookie crumbler

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    if they're giving 5k off hyacc, why bother with toyota.
     
  14. Iamjo20

    Iamjo20 Member

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    still hoping for two seater Prius--just saying.... waiting to sell my 2--8, with only 23000 miles--when I see new 2016....
     
  15. bisco

    bisco cookie crumbler

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  16. mozdzen

    mozdzen Active Member

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    50 mpg and 10,000 miles per year =200 gallons.
    10% boost = 55 mpg --> 181.8 gallons per year.
    I'm certainly not excited about 18.2 gallons saved per year.
    61 mpg --> 164 gallons = 36 less gallons per year - I might notice that.
    600 mile tanks for most drivers. That would be noticeable.
     
  17. inferno

    inferno Senior Member

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    Which is why they're probably going to hit the 60 mpg mark which means...some drivers might get 55, some might get 60, some might baby the acceleration pedal and get 65...now how cool is that.

    Some people already get 52 or 55 mpg with the Gen III.
     
  18. Stevevee

    Stevevee Active Member

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    I'll use exagerated numbers here. 12,000 miles a year, and even let you have $4 a gallon gas.

    If you think about it like a huge consumer market, it becomes easier. The difference between 40 and 50 mpg is $240 a year.

    Increase it to 55 mpg and you have a $88 a year savings from the 50 mpg car, and a whopping $328 from the guzzler 40 mpg car.

    At 60 mpg, it's nice, but not huge.

    What you need to do is draw in more people that are getting far less mpg. Say, the 22 mpg to 30 mpg folks. Now you have a market. But your Prius is already more expensive than a lot of their existing cars, so the savings get eaten up in the purchase price. Combine that with a car that has the same basic familiar wedge shape for many years, and you're not attracting anyone new. You'll probably lose existing owners that are just plain bored. It takes more than just great gas mileage, which is a small part of the total cost of car ownership.
     
  19. john1701a

    john1701a Prius Guru

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    What's the source for that graph? It leaves off an important part...

    [​IMG]

    Notice the story starting at 75 MPG ?

    Think about the variety of plug-in hybrids. There's a diminishing return for batteries too.
     
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  20. Sergiospl

    Sergiospl Senior Member

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