[LiamM340i]

Hello all,
As above, I’m going to view a 2021 MHT m340i next week.
I currently drive an f31 335d that is remapped. Putting similar power to the m340i but quite abit more torque.
How do you think these will compare in terms of straight line speed? Will i get out the m340i disappointed or pleasantly surprised?

Thanks for reading!

[goodbyalfa]

Depends what you are looking for.
In terms of low down shove, you will be disappointed.
If you want something that will excite and reward you pushing on, it's an awesome machine.

[beerglass007]

I would think its on par but sound million times better and will be more useable power

The g series chassis is loads better than F and so his the inside and tech

Basically a totally different car and massive upgrade

[LiamM340i]

Thanks for the feedback!
Yeah the low down shove is enjoyable but the total lack of sound and like beer says the terrible f series chassis totally lets the car down to be honest.

I imagine performance being similar looking at the stats, I’ve read the power delivery from the b58 is very linear with no turbo lag. If true I believe I’ll enjoy the motor!

As for the looks and tech that goes without saying, the f series looked great when it first came out but is looking abit dated these days!

[330Stevie]

As noted it will be a different driving experience altogether. Torque delivery totally different, just look at the history or 40i vs d…..
You’ll sacrifice low down grunt for high end rant ability….
However soundtrack? No comparison!
Chassis and tech…. Night and day.
I’d suggest driving both 40i and 40d to help inform your decision

[DavidXJ]

You'll be mightily impressed with the B58: sonorous, eager, endlessly encouraging across the rev range. To be frank, I've really had no issues at all with the low-down torque or throttle responsiveness. (If one wants more of that, in this day and age, then just get a Tesla and be done with it.) I'd be more interested in the silkiness of the straight 6. And the contrast that the drive modes offer means that, for the vast majority of day-to-day situations, the 40i is not only a proper athlete (supplying former-M3-rivalling pace to 60 and way more creature comforts in ride quality and tech) but also remarkably approachable and adaptable. Hopefully you'll be able to explore its capabilities, so to speak, on the test drive just to get a flavour of the chassis too--something that EVO were raving about recently, I noticed...

D

[LiamM340i]

Originally Posted by 330Stevie

As noted it will be a different driving experience altogether. Torque delivery totally different, just look at the history or 40i vs d…..
You’ll sacrifice low down grunt for high end rant ability….
However soundtrack? No comparison!
Chassis and tech…. Night and day.
I’d suggest driving both 40i and 40d to help inform your decision

I was thinking the 40d but I can’t see it being massively different engine wise to my current f31 335d and I just find it a little boring, very fast, very capable but just lacking that something, the car just isn’t exciting

[LiamM340i]

Originally Posted by DavidXJ

You'll be mightily impressed with the B58: sonorous, eager, endlessly encouraging across the rev range. To be frank, I've really had no issues at all with the low-down torque or throttle responsiveness. (If one wants more of that, in this day and age, then just get a Tesla and be done with it.) I'd be more interested in the silkiness of the straight 6. And the contrast that the drive modes offer means that, for the vast majority of day-to-day situations, the 40i is not only a proper athlete (supplying former-M3-rivalling pace to 60 and way more creature comforts in ride quality and tech) but also remarkably approachable and adaptable. Hopefully you'll be able to explore its capabilities, so to speak, on the test drive just to get a flavour of the chassis too--something that EVO were raving about recently, I noticed...

D

You should work for one of these car magazines!
It is an unaccompanied test drive so I’m sure I’ll get a decent run out and hopefully be able to explore some of what the car has to offer!
I imagine the chassis with be the biggest difference as the f31 335d’s are terrible handling wise!
I believe bmw gave them SE suspension I think I read somewhere, which for the price of car is ridiculous!

[marksandygill]

The old 335d was an awesome car, I always thought the xDrive and better economy gave it the edge over the 340i, but it always felt heavy, my wife's 440i feels much more agile and responsive, as long as you can get it off the line!

The new M340i has both xDrive, more power, and with the MHT, much better economy than before, as much as I love BMW's diesel cars, I wouldn't look past an M340i

[LiamM340i]

Originally Posted by marksandygill

The old 335d was an awesome car, I always thought the xDrive and better economy gave it the edge over the 340i, but it always felt heavy, my wife's 440i feels much more agile and responsive, as long as you can get it off the line!

The new M340i has both xDrive, more power, and with the MHT, much better economy than before, as much as I love BMW's diesel cars, I wouldn't look past an M340i

Good to hear mark! Can you feel the MHT at any point?

[marksandygill]

Originally Posted by LiamM340i

Good to hear mark! Can you feel the MHT at any point?

I forget the thread but two guys who own an MHT and a non MHT M340i have said they can't feel any difference, and it is only 11hp on a car with 370!
You will notice the difference in MPG more than anything, my current 320d is about 15% better than my first non MHT one a couple of years ago!

[LiamM340i]

Originally Posted by marksandygill

I forget the thread but two guys who own an MHT and a non MHT M340i have said they can't feel any difference, and it is only 11hp on a car with 370!
You will notice the difference in MPG more than anything, my current 320d is about 15% better than my first non MHT one a couple of years ago!

Any mpg is a plus! I’ve read the m340i can be fairly frugal, not that you buy one for the mpg!
After trawling the American forum also. A lot of them chaps are seeing over 400 bhp from the standard motor, I know they get slight more bhp than we do and I know bmw are very conservative with their figures but 400 bhp is a decent jump up to what bmw claim!

[golty]

Originally Posted by LiamM340i

Any mpg is a plus! I’ve read the m340i can be fairly frugal, not that you buy one for the mpg!
After trawling the American forum also. A lot of them chaps are seeing over 400 bhp from the standard motor, I know they get slight more bhp than we do and I know bmw are very conservative with their figures but 400 bhp is a decent jump up to what bmw claim!

Watch the video RaceChip did on an M340i. A stock DE model was 405bhp at stock, this was a pre MHT model. They get huge gains with just a downpipe, 480bhp I think.

In terms of performance I came from an M2 Comp (wanted a better all round car) and the M340i certainly hasn't been a let down in performance. I like it much more just because of the tech it has.

Been driving pretty carefully as the car has only 900 miles on it and i've averaged 38mpg so far.

[LiamM340i]

Originally Posted by golty

Watch the video RaceChip did on an M340i. A stock DE model was 405bhp at stock, this was a pre MHT model. They get huge gains with just a downpipe, 480bhp I think.

In terms of performance I came from an M2 Comp (wanted a better all round car) and the M340i certainly hasn't been a let down in performance. I like it much more just because of the tech it has.

Been driving pretty carefully as the car has only 900 miles on it and i've averaged 38mpg so far.

That’s crazy that a non “proper M” car it’s probably pushing out 400 bhp.

Very interesting that you don’t feel short changed in performance terms coming from your m2 comp as they’re quick little cars!
How does the MHT sound compared to the none MHT?
I read less burbles and more subtle?

That’s excellent mpg given the performance! I only Average 38 mpg in the 335d

[xenon]

The difference in quality is night and day IMO. I hated my F31, the NVH was dreadful.

[golty]

Originally Posted by LiamM340i

That’s crazy that a non “proper M” car it’s probably pushing out 400 bhp.

Very interesting that you don’t feel short changed in performance terms coming from your m2 comp as they’re quick little cars!
How does the MHT sound compared to the none MHT?
I read less burbles and more subtle?

That’s excellent mpg given the performance! I only Average 38 mpg in the 335d

The M2 Comp was great no doubt about it, miss the engine noise. Generally though unless it was perfect conditions, the M340i is quicker in a straight line. The M2 did struggle to get the power down at times but it was always good fun. The M340i feels more stable in the bends to me and quite nimble, i'm sure on track the M2 would beat it but i'm only using this as a road car.

I drove the M2 through winter on the standard summer Michelin PSS (stupid I know) and the thing was lethal on cold slippy roads. I know the M340i is much better already and I don't think you need winters on it.

I can't comment on non-MHT but you aren't going to get much exhaust sound in the cabin with the MHT. Open the window and in sport it does sound good, typical BMW straight 6 and there are a few burbles. My car is only low mileage so I hope it improves.

Ye so pleased with the MPG. 30 MPG was very difficult in the M2 so having 38 already is amazing.

[BennyDunks]

I'm 5 weeks and coming up to 1000 miles in my 40i MHT and it's not obnoxious still loud enough in sport plus but it's got a little throatier since day 1 for sure. Pretty sure my rear passengers hear more of it than me in the front.

[330Stevie]

Originally Posted by LiamM340i

I was thinking the 40d but I can’t see it being massively different engine wise to my current f31 335d and I just find it a little boring, very fast, very capable but just lacking that something, the car just isn’t exciting

And that’s exactly why I went 40i……
I had to test the d tho to be sure. Fine motor, very fine in fact; however it was an easy decision in the end…

[LiamM340i]

Roll on this test drive!
I feel like a kid at Christmas 😂

[LiamM340i]

Originally Posted by golty

The M2 Comp was great no doubt about it, miss the engine noise. Generally though unless it was perfect conditions, the M340i is quicker in a straight line. The M2 did struggle to get the power down at times but it was always good fun. The M340i feels more stable in the bends to me and quite nimble, i'm sure on track the M2 would beat it but i'm only using this as a road car.

I drove the M2 through winter on the standard summer Michelin PSS (stupid I know) and the thing was lethal on cold slippy roads. I know the M340i is much better already and I don't think you need winters on it.

I can't comment on non-MHT but you aren't going to get much exhaust sound in the cabin with the MHT. Open the window and in sport it does sound good, typical BMW straight 6 and there are a few burbles. My car is only low mileage so I hope it improves.

Ye so pleased with the MPG. 30 MPG was very difficult in the M2 so having 38 already is amazing.

Either way it’ll sound 1000x better than my 335d!
That it the selling point of x-drive!

[LiamM340i]

Originally Posted by BennyDunks

I'm 5 weeks and coming up to 1000 miles in my 40i MHT and it's not obnoxious still loud enough in sport plus but it's got a little throatier since day 1 for sure. Pretty sure my rear passengers hear more of it than me in the front.

I think the car I’m going to drive is on around 3k so maybe it’ll sound abit better than when it was brand new!

[AndyTo]

I've had my m340i for just over 5k miles now, my last car was an F31 335d with a tuning box (so about 360bhp), the M340i on a B road blast kicks the crap out of the 35d, noise, feel, handling and just how quickly it approaches a corner. No doubt the 40i is faster.
The 40i feel much more eager, from standstill the 40i seems to hit 40mph much easier (if that makes sense?) just feels more willing to get going.
Where the 35d is the better engine is on a long motorway run, I've just done another 4.5hr drive to take the family away for half term and the F31 was a more comfortable car on a long drive, the diesel was a much more effortless drive, a gentle accelerate from 60-70 the 40i drops a gear and doesn't pull very hard. Its no slouch but waaaay slower that there derv, to match the 35d acceleration 50-70 the 40i will drop 2 gears when the derv will just pull like a train and after 4 hours that starts to get annoying, in fact inside an hour I get a bit pissed off.

the M340i is a better car, more fun for more of the time, which is why anyone buys the big engine model, but if you do a lot of long motorway journeys the 40d is the better engine if the car is your only daily.

Not sure what the derv is like with MHT, but the petrol isn't great when it keeps turning the engine off, its not as bad as eco-pro in the F31 but not far off, the petrol is quite responsive and I find the engine is quicker than the gearbox so I get a little 'jerk' as the engine is as 1.5krpm before the gearbox has reengaged. very annoying. Can't turn it off either, so I've configured individual sport mode with everything in comfort, so no cruising or engine off malarky and its a far more pleasant drive, just have to hit sport everyday.