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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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#104 of 112 M35x mechanicals compared to G37x by bruceomega Feb 12, 2009 (1:25 pm)
I went to the Washintgon DC Auto Show this past weekend. Noticed that the 2009 AWD G sedan had a 7 speed AT while the more expensive AWD M sedan had a 5 speed auto (and the G had a bigger engine).   Is the AWD M going to be receiving the 7 speed at some point?   Thanks Bruce Replies to this message: walt18 (Feb 12, 2009 1:41 pm)
#105 of 112 Re: M35x mechanicals compared to G37x [bruceomega] by walt18 Feb 12, 2009 (1:41 pm)
Replying to: bruceomega (Feb 12, 2009 1:25 pm) From what I am hearing they are going to be making a new M for the 2010 year model which will be a M37 and M50 the M37 will replace the M35 but it will have the same engine as the G37 and 7 speed transmission. The M50 will replace the M45 and have the engine from the 2009 FX50 which is a 5.0L 390Hp 369LBs ft. torque but it maybe a little more now being that all the other competition is now producing V-8 engines with no less than 400 hp. It is said that the 2010 M will look even more like the G37. When the pictures and more info is released we will know more. You can check this info by typing 2010 infiniti m50 into your google or yahoo browser and they will give you the info. Also check infiniti history they talk about it a little there to. Hope this helps God bless.
#106 of 112 2010 Infiniti M37x & M50x Questions? by veragen May 28, 2009 (8:38 pm)
So Infiniti 2010 M's will be redesign similar to Infiniti G sedan with the new V6 engine 3.7L , 7 speed Auto-transmission for the M37(x) & the new V8 engine 5.0L from the FX50, w / 7 speed Auto-transmission for the M50(x).   What is the MPG for city / hwy?   Will the HP & LBs be the same as in the G37 & FX50?   I find the M as an excellent luxury-sport sedan, but the avg. gas milage is very low compare to the Lexus GS & Hyundai Genesis.   VeraGen Replies to this message: walt18 (May 29, 2009 3:23 pm) rayainsw (Aug 14, 2009 9:42 am) walt18 (Aug 15, 2009 9:04 pm)
#107 of 112 Re: 2010 Infiniti M37x & M50x Questions? [veragen] by walt18 May 29, 2009 (3:23 pm)
Replying to: veragen (May 28, 2009 8:38 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. Replies to this message: rayainsw (Aug 14, 2009 9:42 am) walt18 (Aug 15, 2009 9:04 pm)
#109 of 112 Summary by khaug1 Aug 14, 2009 (12:25 am)
Okay, we now know that the '09 M35 (V6) got a boost to 303 HP, while the M45 (V8) stayed the same. The M35x and the M45 still have the 5-speed tranny.   The M35 and M45 HP ratings are now so close that no way can I see the M45 as worthy of its price premium, let alone the M45's strong reputation for oil-burning and engine replacement need!   Too bad the M35x missed the 7-speed auto, but the "x" and M45 have the presumed advantage of a tranny with a great track record, whose only shortcoming vis-a-vis the 7 speed is its short gearing in 5th.   Thanks for the discussion, all. Me, I'm very happy with what I bought!.   -Karl, '09 M35x Replies to this message: shmang (Aug 14, 2009 6:00 am)
#110 of 112 Re: Summary [khaug1] by shmang Aug 14, 2009 (6:00 am)
Replying to: khaug1 (Aug 14, 2009 12:25 am) Hey, Karl:   Congratulations on the new M35X purchase. You will have a lot fun with it I am sure.   As far as the power, Yes, the M35 get boosted to 303hp, but, if you look at the torque, it is actually down a bit. So, it seems that the power difference between M35 and M45 is less. But, keep in mind, it is torque that move the car, the HP is only used for top speed, which nobody will top out, even the M35 on public road - which is something around 155MPH.   So, the M45 still has an noticeable advantage over M35, especially when both mated with 5spd, the gas mileage are basically the same. I would say the M45 is still a better car. But, again, I have a M45 and loves the low to mid range power, which I think is more practical for daily usage (instead of racing).
#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.

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