2009 Infiniti M35/M45

112 messages, Last post on Aug 15, 2009 at 9:04 PM

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What is this discussion about? Infiniti M35, Infiniti M45, Sedan

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#111 of 112 2011 M50 [non-x] Re: 2010 Infiniti M37x & M50x Questions? [walt18] by rayainsw Aug 14, 2009 (9:42 am)
Replying to: walt18 (May 29, 2009 3:23 pm) "From what I read a few weeks ago about it, the president from infiniti division said that the M45 can't have less horsepower than the fx50. The gas mileage might still suck because it didn't change much on the 2009 fx50. " The 2008 FX45 was rated at 13 \ 17. The 2009 FX50 was rated at 14 \ 20. Given the rather significant additional HP & TQ of the 5.0L vs the 4.5L V8s, the increase in Highway MPG of 3 MPG and over 17% seems fairly impressive. To me. Sounds like the 7-speed trans helps accomplish one intended goal. The 2009 M45 [ and 2010, if any are actually produced ] is rated at 16 \ 21. An equivalent increase in Highway MPG would bring the M50 [ non-x ] to: 23 or 24 MPG. [ Math actually works out to 23.52 ] Not exactly earth-shattering MPG, but not bad for a fairly heavy sedan [ almost exactly the same weight as my G8 GT ] with a V8 developing 390 HP & 369 TQ. [ Up from 325 \ 336 in the M45 ] And this would make the M50 more competitive in the class. Given a likely weight increase of less than 100 LBS, I expect that the M50 will deliver a noticeable increase in acceleration. I have seen published quarter mile times in the high 13s & low 14s - at over 100 and 0 to 60 in the 5s for M45s. And it will cost more than the M45. [ sigh ] That is my prediction . . . We shall see. - Ray Looking forward to seeing what it looks like, tonight Replies to this message: walt18 (Aug 15, 2009 9:04 pm)
#112 of 112 Re: 2011 M50 [non-x] Re: 2010 Infiniti M37x & M5 Questions? [walt18] [rayainsw] by walt18 Aug 15, 2009 (9:04 pm)
Replying to: rayainsw (Aug 14, 2009 9:42 am) We now know that it will not be a M50. It will be called M56 because they are using the 5.6L motor from the nissan titan truck. From the little info they have up now the M56 will have more than 400HP!!! and be even quicker than the previous M45. I think the new style is pretty neat except they need to shave alittle off the front end because it sits to high up. I think if they take a little more of that curve out of the front fenders to make it not look like the Essence it would be even better looking in my opinion. However if not it doesn't matter it still is nice car. I held out buying the 08 or 09 M45 to see what this one was going to be like and glad I did much more worth the money. I ready to place my order already! How do you guys think the gas mileage will be with it being a 5.6L instead of 5.0L? I don't think the price of the car will increase much maybe a few hundred dollars or so.

#111 of 112: 2011 M50 [non-x] Re: 2010 Infiniti M37x & M50x Questions? [walt18] by rayainsw; Aug 14, 2009 (9:42 am)

Replying to: walt18 (May 29, 2009 3:23 pm)

"From what I read a few weeks ago about it, the president from infiniti division said that the M45 can't have less horsepower than the fx50. The gas mileage might still suck because it didn't change much on the 2009 fx50. "

The 2008 FX45 was rated at 13 \ 17.
The 2009 FX50 was rated at 14 \ 20.

Given the rather significant additional HP & TQ
of the 5.0L vs the 4.5L V8s,
the increase in Highway MPG of 3 MPG and
over 17% seems fairly impressive.
To me.

Sounds like the 7-speed trans helps accomplish
one intended goal.

The 2009 M45 [ and 2010, if any are actually produced ]
is rated at 16 \ 21.

An equivalent increase in Highway MPG
would bring the M50 [ non-x ] to:
23 or 24 MPG.
[ Math actually works out to 23.52 ]

Not exactly earth-shattering MPG,
but not bad for a fairly heavy sedan
[ almost exactly the same weight as my G8 GT ]
with a V8 developing 390 HP & 369 TQ.
[ Up from 325 \ 336 in the M45 ]
And this would make the M50 more competitive
in the class.

Given a likely weight increase of less than 100 LBS,
I expect that the M50 will deliver a
noticeable increase in acceleration.
I have seen published quarter mile times
in the high 13s & low 14s - at over 100
and 0 to 60 in the 5s for M45s.

And it will cost more than the M45.
[ sigh ]

That is my prediction . . .
We shall see.

- Ray
Looking forward to seeing what it looks like, tonight

walt18 (Aug 15, 2009 9:04 pm)

#112 of 112: Re: 2011 M50 [non-x] Re: 2010 Infiniti M37x & M5 Questions? [walt18] [rayainsw] by walt18; Aug 15, 2009 (9:04 pm)

Replying to: rayainsw (Aug 14, 2009 9:42 am)

We now know that it will not be a M50. It will be called M56 because they are using the 5.6L motor from the nissan titan truck. From the little info they have up now the M56 will have more than 400HP!!! and be even quicker than the previous M45. I think the new style is pretty neat except they need to shave alittle off the front end because it sits to high up. I think if they take a little more of that curve out of the front fenders to make it not look like the Essence it would be even better looking in my opinion. However if not it doesn't matter it still is nice car. I held out buying the 08 or 09 M45 to see what this one was going to be like and glad I did much more worth the money. I ready to place my order already! How do you guys think the gas mileage will be with it being a 5.6L instead of 5.0L? I don't think the price of the car will increase much maybe a few hundred dollars or so.