BMW 4系 2013要面市啦！

texasdf

超赞的！以后3系都是sedan，4系都是coupe！

Antng

正呀！應該好撚貴！

texasdf

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我觉得应该还好吧，4万刀起价吧！

made_in_HK

texasdf 發表於 2012-1-28 01:48
超赞的！以后3系都是sedan，4系都是coupe！

concept car or production model?  looks better than 6 series in my opinion.  still hate BMW's -/+ setup on the automatic shift lever (again, my opinion only).

texasdf

made_in_HK 發表於 2012-1-28 03:19
concept car or production model?  looks better than 6 series in my opinion.  still hate BMW's -/+  ...

This will be a production car. No more 3 series coupe!

KKTT

looks way better than the fat 6 series

but they r making those niche market even smaller now

fatdragon167

除了2同9，寶馬乜系都有。

gc63hk

Should have better handling than series 6

gmen75

KKTT 發表於 2012-1-28 04:32
looks way better than the fat 6 series

but they r making those niche market even smaller now

It's an obvious competition to Audi A5, or an enlarged 3 coupe, or both.

Addicted

I am not excited about renaming the 3 series coupe to 4 series. The first 3 series is a couple. And the E36 has the coupe introduced before the sedan.

What's next, renaming the iconic M3 coupe to M4?

made_in_HK

texasdf 發表於 2012-1-28 03:21
This will be a production car. No more 3 series coupe!

I meant the one in the picture.  thanks  

Addicted

That photo is just a photoshop, please...

Addicted

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There's a practical purpose of how BMW set up the +/- Steptronic.  It works very well when you are driving fast, as the shift of momentum is more significant:

1, Acceleration - during hard acceleration, the force push your body back to the seat, so it's easier for your hand to pull back for an upshift
2, Deceleration - When you brake hard, your body lean forward due to the force, so it's easier for you to push the lever for downshifting.

However, I understand your experience.  This doesn't work well in uphill/downhill normal driving.

Still, it's better than the left - right + setup on the M-Benz/Chrysler in the early 00s.  That's plain dumb.

gmen75

Addicted 發表於 2012-1-28 14:46
That photo is just a photoshop, please...

Actually the picture's very close to the real thing:

以上影片乃youtube提供,與本站無關; 若無法觀看,可查看原網址。

Addicted

gmen75 發表於 2012-1-28 16:05
Actually the picture's very close to the real thing:

Well, not in my eyes, but just my feeling. They did a pretty good job camouflaging the car.

made_in_HK

Addicted 發表於 2012-1-28 14:50
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There's a practical purpose of how BMW set up the +/- Steptronic.  It works  ...

There's a practical purpose of how BMW set up the +/- Steptronic.  It works very well when you are driving fast, as the shift of momentum is more significant:

1, Acceleration - during hard acceleration, the force push your body back to the seat, so it's easier for your hand to pull back for an upshift
2, Deceleration - When you brake hard, your body lean forward due to the force, so it's easier for you to push the lever for downshifting.

it's a myth mainly endorsed by people from Edmunds.com.  if that setup is actually that significant, the makers of some of the worlds supercars (and super-track cars) would have utilize it (think Porsche PDK).  Driving a car that is capable of going really really really fast, the design of that car's seat would have the driver nicely snugged into the seat that one cannot really feel the body leaning forward or pulling back (lesson learned from Skip Barber Racing).

+/-  or -/+ setup makes no difference in driving except I just don't like the -/+ as I am more used to the +/-...  PRND321 <--  +/-

1 3 5 R
2 4 6      <--- from 5 to 6, that's accelerating, body pull back (based on your written theory) and pull back shifter to accelerate, from 6 to 5, that's decelerating, body lean forward and push shifter up to decelerate.

R 1 3 5 7
   2 4 6     <--- from 6 to 7, that's accelerating but in this case, body pull back and yet you still push forward to accelerate.  from 7 to 6, that's decelerating but in this case, your body (based on your written theory) lean forward, yet you're pulling back the shifter.

Addicted

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Well, in a sequential gear box setup in race cars like dragsters and rally cars, it's pulling = upshift, pushing = downshift.

The reason for MOST manufacturers not adopting this regime is that, the general public, no matter a beginner, or an EXPERT like made_in_HK, are either confused about
or dislike this setup.  Marketing department rules.  So are the seats.  Good racing seats usually are bad for the back for long or even short distance driving on public streets.  BMW and Porsche made the best seats for most purposes IMO.

I forgot if it's Tom's or some other Japanese aftermarket companies, has a retrofit kit for Toyota to reverse the +/- pattern, of course, only for enthusiasts.

When the first gen PDK came out, people complaint about the buttons on the spokes on steering wheel.  I don't know why people back in the Tiptronic days don't complain about it as much as the PDK's (I hate mine).  At least Porsche is listening and put levers behind the steering wheel afterward.

I appreciate your time and effort making a nice example of the gear box pattern.  How about the biggest momentum shift during hardest acceleration -- the 1 to 2 shift?  The 2-3, 3-4, 4-5 upshift is not as hard as the 1-2 shift.  But we are talking about a regular manual gearbox, not a +/- or purpose-built sequential gear box.

ufoon11

寶馬還要出4系，其實我覺得她只要專注做好現有系列就已經足夠。

Addicted

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佢地係想將四門車系用單數(3, 5, 7), 兩門車系或者coupe 型用雙數 (6, 8/Z8, Z4). 所以將3系 coupe 改做4系。但真係冇咁嘅必要囉。3系個 brand identity 咁高，做咩要畫蛇添足…

made_in_HK

Addicted 發表於 2012-1-29 10:25
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Well, in a sequential gear box setup in race cars like dragsters and rally c ...

never claimed to be an expert here, but seeing that you just love think that you're always correct, here is something to share with you...

http://auto.howstuffworks.com/sequential-gearbox1.htm

I might be wrong, but according to the article,...

"In the Gearbox
How Manual Transmissions Work offers a basic understanding of the mechanisms inside a manual transmission. The five-speed manual transmission is fairly standard on cars today. It looks something like this internally:
There are three forks controlled by three rods that are engaged by the shift lever. Looking at the shift rods from the top, they look like this in neutral, rev­erse, first and second gear:

The "H" pattern allows you to move the shift rod between the control rods for the three forks and move the rods back and forth.
A sequential manual transmission works the same way. There is still a set of gear selector forks that move collars that engage gears. The only difference is the way the control rods are manipulated. The "H" pattern is eliminated and replaced with a different motion.
In a race car, the motion of the shift lever is either "push forward" to up-shift or "pull backward" to downshift. If you are in a gear and you want to go to a higher gear (e.g. from 2nd to 3rd), you push the shift lever forward. To go from 3rd to 4th, you push the lever forward again. To go from 4th to 5th, you press it forward again. It is the same motion every time. To drop back down a gear, say from 5th to 4th, you pull the lever backward. In European mass-produced automobiles, the shift lever moves forward and backward to shift into higher and lower gears, respectively..."

I have also known that there are sequential gear boxes that have the -/+ shift pattern, but bottom line is, a myth is a myth, and most importantly, all I was saying was that I don't like the -/+ setup.