Wife says our new Gen 4 is slower than our Gen 2...

?? A Tesla P85D and a prius are not the same. Anything. Methinks you’re in a Tesla high speed technology loop. Step back away from the big trucks in the valley. Take a deep breath and slow down. It’s okay.

 

i think i read that toyota backed off the power a bit to increase mpg's.

there's a 0-60 or quarter mile thread here somewhere

 

The Gen-4 in most people's opinion drives much sportier and quicker than the Gen-3. The Gen-3 was known to be a tad quicker/faster than the Gen-2 when new, somewhat reduced after the inverter recall firmware update to limit the EV-boost power.

So I'd say it is all perception. It could be silly things like the tires are crappy and underinflated along with 3 people being it for a test drive versus just her in well worn tires. Things like that. None of the generations are much quicker than the previous, but the Gen-2 is most definitely not apples-for-apples faster than the Gen-4.

 

I was going thru my pictures and I found screenshots of my 0-60 and 1/4 mile times. I did a test one year ago this week, 90 days after the installation of the Gen 4 shortblock in my 2010. And then back in May, 60 days after the F0R recall. 10.25 to 60 and 17.84 for the 1/4 mile for one year ago. Then 10.79 and 18.088 in May, post power reduction. So this is not an exact recreation of temps and such, but it does give numbers as to how the Gen 3 was affected by the power reduction recall.

 

Huh - I drove a Gen 2 back in the time - and, no it was such a poor drive that I couldn't live with it - I bought a FOCUS.

Gen 3 - ditto - though it was considerably better than Gen 2 - I bought a FIESTA.

Gen 4 - test-drove, this is more like it!!! Yes, good drive, like chalk and cheese over a Gen 2 or 3. No, not as sporty as a FOCUS, but much better fuel efficiency seeing FORD stopped bringing in Diesel FIESTA or FOCUS - I bought Gen 4.

 

Heavier and worse aero at speed.

Seat of the pants, Gen 4 feels quicker off the line than either Gen 2 or 3 - not sure about at higher speeds, I've usually eased off by then.

 

My new fourth generation Prius (on 15” wheels) feels very much slower than my third generation-based Lexus CT-200h it has just replaced.

 

SWMBO has a Gen 2 and it does feel more sprightly off the mark, when pushed, than both the Gen 4 and the Gen 3 I used to have. It seems like the ECVT revving/slipping effect is less pronounced in the Gen 2.

 

MG2 is smaller and has less power and torque but it revs a lot higher so combined with the gear reduction it shouldn't be a huge difference.

 

i am a long time gen 2 owner - 2004 - and about to buy a gen 4 2017 three touring. drove it today and I feel like it was a good bit quicker than my gen 2. - some of it may be the overall more sporty feel of the tight suspension/17" tires on the three touring, and power mode? right off the line (0-20mph?) the gen 2 may be equal or faster - and the gen 2 always impressed me when i stomped on it from 40-60) but the combo of the 2017 tight handling and power mode and acceleration definitely felt faster than our gen 2 overall and at higher speeds. but i must say our gen 2 still drives nice. yes the little gas engine winds on up loudly when you need to step on it - but it can giddy up more than many people think - and I just had a very enjoyable 250 mile rd. trip with the gen 2 this week - as smooth and nice as ever still gettting 50mpg on a highway trip at 206k miles.

 

Sometimes noise can give a perception of speed. I had a Corolla back in the '70s, mate had a MINI. The MINI sounded much faster - because it was noisier - those A Series engines sounded quite nice with less muffler. But line them up on the starting line, and my Corolla was the faster off the line.

 

rev's of MG2? that's (hi revs) not it's most efficient operating band.

i hope some day you get to floor it in a model S ... upon doing so friend, one will never again equate noise with acceleration/power ... it will forever alter perceptions. It'll just sound like noise. This from one who had his share of noisy, gear-changing, high-performance gassers .... in the pre-prius days

.

 

The max rpm of MG2 is 17000rpm in the P610 with a 10.8:1 (Prime has a higher reduction) reduction. So it naturally revs higher than in the Gen1 through Gen3. MG2 is always fixed to the differential so the revs are proportional to the vehicle speed at all times.

It "only" has 163Nm of torque but the high reduction makes sure the output is very high.

The gen 1 Prius had a 400Nm MG2 if I'm correct but that motor could only achieve around 6000rpm so the speed reduction is a lot lower.

In the current P610 transaxle they have even changed the ratio between MG1 and MG2 so that MG1 turns slower than MG2 by around 1.2:1.