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Is this the end of the line for the N/A BMW straight 6?

Posted: Sun Mar 27, 2016 5:59 pm
by ali
Spring is nearly upon us and with that comes a raft of new engines from BMW

In comes the 440i with 322bhp and 332 ft/lbs straight six twin turbo.
The little 4 pot dervs get a make over as well with the basic 320d putting out as much torque as the 440i but with 100 less bhp
The 425d now becomes a 4 pot instead of 6 and even more worryingly is the 420i with a 181bhp and 430i in 248bhp form which are both turbocharged 4 pots

Is this the end of the line for the N/A BMW straight 6?

I thought a front wheel drive 2 series was bad enough now this.
May as well go and buy an Audi :(

Posted: Tue Mar 29, 2016 10:29 pm
by Chas
I'm more concerned about Alpinas rolling off the BMW production line. Is this the end of the line for Alpina as a bespoke manufacturer? Are they becoming relegated to the status of tuner?

No Audi required; just stick with the older models and look after them :)

Posted: Wed Mar 30, 2016 1:59 pm
by Charles
The normally aspirated straight six went years ago with the advent of sequential turbos.

Nowadays, BMW can achieve the same output from a turbo four pot which provides better economy so, unless they want to target a higher output, then there is no need for a straight six - sadly.

Posted: Wed Apr 13, 2016 6:05 pm
by simon13
its hasn't gone though its just gained a turbo or two in diesel and petrol. As long as they make all their bigger cars the 6 pots and V8's will stay

They've just brought out a twin turbo v12 seven series! obviously nicked from rolls but hey!

Posted: Wed Apr 13, 2016 11:31 pm
by Jervint
The end of normally aspirated BMWS in general I think. They finally found the replacement for displacement!

I wonder if we'll ever see engines like the S85 V10 or the AMG 6.2 again. Noise and emissions regs are both getting tighter. Plus the Chinese market has such a big say now...anything over 4 litres gets taxed to buggery.

I also think as far as straight sixes go the S54 is hard to top...

Posted: Fri Apr 22, 2016 3:29 pm
by CV35Ian
Be positive:
6 cylinders = 6
4 cylinders plus twin turbos also = 6

Posted: Fri Apr 22, 2016 10:17 pm
by Broch
I still hope that the XD3 will come with a tri-turbo engine :wink: