IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

A small review of the IS300h.

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Old 09-21-13, 02:13 AM
  #76  
natnut
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Like I discovered during my own personal test drive of the IS300h, criticisms of the IS300h drivetrain are a bit overblown.

Autoweek compared the IS300h vs the BMW 320d and was "very pleased" with the drivetrain.

Can the new IS be compared to the 3-series? If you are only after driving experience, you should opt for the German. Also, the BMW has more room. But if you look at the total picture, the Lexus brings you better value.

The Lexus is especially remarkable regarding comfort. The driving experience is comparable to a Mercedes E-Class and the on-board quality experience feels one segment higher. Also, we are very pleased with the powertrain. This is a car which makes us happy.
The IS300h won the comparison BTW.

Link (via lexusenthusiast.com) :
http://lexusenthusiast.com/2013/09/2...-bmw-320i-ede/
Old 09-21-13, 04:09 AM
  #77  
jhs82
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The criticism is generally to the CVT, but for a hybrid that's the only gearbox that works good. A normal automatic transmission gets jerky when the combustion engine turns on and off during driving.

And despite (or thanks to?) the CVT, there's plenty of take-off power when put in S-mode. The initial power seems equal to my 270hp/440Nm Audi i had before, and that one was really quick thanks to the quattro.

Anyhow, the criticism is over exaggerated.
Old 09-25-13, 04:04 AM
  #78  
alpine
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Originally Posted by jhs82
The criticism is generally to the CVT, but for a hybrid that's the only gearbox that works good. A normal automatic transmission gets jerky when the combustion engine turns on and off during driving.

And despite (or thanks to?) the CVT, there's plenty of take-off power when put in S-mode. The initial power seems equal to my 270hp/440Nm Audi i had before, and that one was really quick thanks to the quattro.

Anyhow, the criticism is over exaggerated.
I tried the CT and thought that was awful. But last week, I had my non-hybrid GS in for servicing and they lent me an IS300H as courtesy car. What a contrast! It actually felt like a Lexus, and the interior, with leather and sat nav is nice quality even though I'm used to the GS. In fact I liked it to the extent that I've ordered one...
In the UK we get zero road tax the first year, and £20 per year after that. That compares well to the GS which now costs £475($760) per year to tax. And of course our fuel costs around £1.40 per liter, that's £5.25, $8.42 per US gallon.

On the specific subject of the box, again, the CT was a screamy mess, but this felt almost like the very smooth automatic in the GS.

Last edited by alpine; 09-25-13 at 04:10 AM.
Old 09-25-13, 06:16 AM
  #79  
spwolf
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Originally Posted by alpine
I tried the CT and thought that was awful. But last week, I had my non-hybrid GS in for servicing and they lent me an IS300H as courtesy car. What a contrast! It actually felt like a Lexus, and the interior, with leather and sat nav is nice quality even though I'm used to the GS. In fact I liked it to the extent that I've ordered one...
In the UK we get zero road tax the first year, and £20 per year after that. That compares well to the GS which now costs £475($760) per year to tax. And of course our fuel costs around £1.40 per liter, that's £5.25, $8.42 per US gallon.

On the specific subject of the box, again, the CT was a screamy mess, but this felt almost like the very smooth automatic in the GS.
2.5l D4S is much better than 1.8l in CT200h, thats the difference...

I am glad you guys liked it, some of the reviews have been borderline idiotic, it is as if hybrids will "kill their babies". I think AE or Autocar wrote that Lexus doesnt know how to do diesels so they had to build a hybrid... i mean.. lol. :-)
Old 09-25-13, 06:19 AM
  #80  
spwolf
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Originally Posted by jhs82
The Electric motor in the 300h is about 140hp (105kW). But you never come close to that output in real life since the ECU fires up the petrol engine way too soon.

The GS450h has a 200hp (147kW) electric motor, but slightly less torque compared to the 300h.

To recover power is not a problem.
thats because maximum battery output is something like 42hp. So they would have to get bigger battery and plus, again, recovery of energy is the problem. If you had 100hp battery output, then you wouldnt be able to recover enough from braking, so you would have situations where you would have no energy left for acceleration in the batteries. To avoid that, they would have to charge more via engine, and then you would have large fuel consumption.
Old 09-25-13, 06:34 AM
  #81  
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Originally Posted by spwolf
2.5l D4S is much better than 1.8l in CT200h, thats the difference...

I am glad you guys liked it, some of the reviews have been borderline idiotic, it is as if hybrids will "kill their babies". I think AE or Autocar wrote that Lexus doesnt know how to do diesels so they had to build a hybrid... i mean.. lol. :-)
There's more to it than that.

CT200h
1798cc 4cyl 73kW
60kW, 207Nm, 202V electrical motor

IS300h
2494cc 4cyl 133kW
105kW, 300Nm, 650V electrical motor
Old 09-25-13, 06:53 AM
  #82  
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Originally Posted by jhs82
There's more to it than that.

CT200h
1798cc 4cyl 73kW
60kW, 207Nm, 202V electrical motor

IS300h
2494cc 4cyl 133kW
105kW, 300Nm, 650V electrical motor
IS300h has more battery output - 10hp more i think. 35hp vs 45hp.
It has bigger battery - voltage is 230v but then upconverted to 650 (CT200h is also converted to 650).

Difference in motor sizes is for better energy recovery.
Old 09-25-13, 08:48 AM
  #83  
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Originally Posted by spwolf
IS300h has more battery output - 10hp more i think. 35hp vs 45hp.
It has bigger battery - voltage is 230v but then upconverted to 650 (CT200h is also converted to 650).

Difference in motor sizes is for better energy recovery.
The IS300h electric engine has 60 hp more, 140 hp total (CT200h has 80 hp).

And the petrol engine is for more than regenerating battery power.
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