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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > More efficient 318d in October



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      05-13-2008, 03:26 AM   #1
poggy
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Thumbs up More efficient 318d in October

Not sure if this has been posted before: couldn't find it though:

Looks like there may even more efficient engines in october when they release the facelift.

http://www.autoexpress.co.uk/news/au...reen_trio.html

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      05-13-2008, 03:33 AM   #2
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      05-13-2008, 03:52 AM   #3
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Once a significant number of new cars fall into the sub-120 gram band the goalpost will probably change. After all, there are still a lot of civil servants, bureaucracy and quangos to fund
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      05-13-2008, 03:56 AM   #4
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Once a significant number of new cars fall into the sub-120 gram band the goalpost will probably change. After all, there are still a lot of civil servants, bureaucracy and quangos to fund

So true.
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      05-13-2008, 04:25 AM   #5
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An incredible reduction of 4g/km reduction in emissions !

For an average driver doing 10,000 miles per year that would scale up to an awe inspiring reduction of 64kg of CO2 emissions.

The market value of a tonne of CO2 savings is 8 so economic value of this is an amazing 51p per year.

So the government is foregoing 120 per year of road tax to achieve a 51p reduction in CO2.

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      05-13-2008, 05:26 AM   #6
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An incredible reduction of 4g/km reduction in emissions !

For an average driver doing 10,000 miles per year that would scale up to an awe inspiring reduction of 64kg of CO2 emissions.

The market value of a tonne of CO2 savings is 8 so economic value of this is an amazing 51p per year.

So the government is foregoing 120 per year of road tax to achieve a 51p reduction in CO2.

Cynic!
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      05-13-2008, 08:19 AM   #7
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Never mind that ^.....

apparently "BMW’s engineers are confident that with some minor adjustments, the target emissions can be achieved. They are concentrating on the aerodynamics and gearing, as well as lower rolling resistance tyres"........

Can someone please explain to a non-engineer like myself how exactly altering the aerodynamics and tyres reduces the CO2 emmissions of a car.....??????


Oh and of course what they dont say is that the new engine will be jerky, unresponsive and hesitant......and they won't be able to make it any better.....
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      05-13-2008, 08:57 AM   #8
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By reducing the drag and lowering the rolling resistance of the car it will use less fuel and so produce less CO2. equally, tweaking the gearing to suit the CO2 test (rather than typical driving) could also make it seem a little more efficient.

I can see it now, a faired over nose and space-savers running at 110psi.
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      05-13-2008, 09:02 AM   #9
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Quote:
Originally Posted by mjh93sa View Post
By reducing the drag and lowering the rolling resistance of the car it will use less fuel and so produce less CO2. equally, tweaking the gearing to suit the CO2 test (rather than typical driving) could also make it seem a little more efficient.

I can see it now, a faired over nose and space-savers running at 110psi.

Yeah...I knew really....it just makes you laugh though (well it does me).....they claim to be making a more efficient engine when all they are really doing is making the car produce better figures to suit the test.....
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      05-13-2008, 09:21 AM   #10
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Given that 'low rolling resistance' runflats are a fairly new and rather niche product I would have a real problem buying a car fitted with them.

Standard runflats are already a twat to find in a hurry. Bluemotion style versions will be like hens teeth.

Also .... when you think about it ... similar gains could be achieved just by fitting narrower profile tyres.

We'll all be back on 14 inch 155's soon.
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      05-13-2008, 10:25 AM   #11
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buy a bentley and turn the boost up i say!
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      05-13-2008, 10:29 AM   #12
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buy a bentley and turn the boost up i say!
I agree
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      05-13-2008, 10:30 AM   #13
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All of the changes proposed are relatively simple to implement and i for one welcome any move to improve the fuel consumption of a vehicle, especially with the way fuel prices are going. Admittedly, diesel costs more, but the sums suggest at current rates that a 318d would save approximately 900/year over a 320i based on 12,000 miles a year - not to be sinfed at. Yes you have to look at the whole economics (purchase price/depreciation/servicing etc) but who's to say that the government aren't going to do something further to tax any kind of petrol car or lets for arguments sake say any car that does less than 50mpg. 50mpg is pretty achieveable with many reasonably sized cars these days. I never ever thought i would think about getting a diesel but i feel the time coming.
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      05-13-2008, 10:42 AM   #14
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I agree
I know mate, id love a Conti GT, re-mapped to 620bhp

5mpg here we come
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      05-13-2008, 11:41 AM   #15
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Quote:
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I know mate, id love a Conti GT, re-mapped to 620bhp

5mpg here we come
I was just looking at this thread on Pistonheads:

http://www.pistonheads.co.uk/gassing...p?h=0&t=490109

Nice V12 750 for 2K would be a bit of a laugh. Spend the money on petrol instead of depreciation for a change.
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