4.5 vs 4.2 vs 4.0 comparisons?
Discussion
Although I had my heart set on a 4.5 I seem to be hearing/reading more about 4.2s being at least as fast or even "feeling faster". From what I understand 420bhp of the 4.5 sounds like a lot more power than the 4.2's 350bhp but it seems that there's a lot of variation in 4.5 output (is that right?)
And where does the 4.0 Speed Six stand? I have seen a few references saying it is the slowest of all 3 (which I know it's relative and a Speed Six is no doubt pretty d*mned fast!) but isn't it comparable to the 4.2 as it has the same power?
It wouldn't be the first time manufacturer's specs and real world experiences were a lot different!
P.S. If anyone's wondering about the 4.5 in Newcastle I was going to view the owner can't make it now and with next weekend being Easter I may not end up looking at it.
Good thing is: maybe I can do more research and reassess the others for sale....
Malc
And where does the 4.0 Speed Six stand? I have seen a few references saying it is the slowest of all 3 (which I know it's relative and a Speed Six is no doubt pretty d*mned fast!) but isn't it comparable to the 4.2 as it has the same power?
It wouldn't be the first time manufacturer's specs and real world experiences were a lot different!
P.S. If anyone's wondering about the 4.5 in Newcastle I was going to view the owner can't make it now and with next weekend being Easter I may not end up looking at it.
Good thing is: maybe I can do more research and reassess the others for sale....
Malc
May get accused of oversimplification here, but, as between 4.2s and 4.5s, basically
4.2s are better mapped than 4.5s as standard, and often make close to the quoted 360hp
4.5s are not as well-mapped as standard, and a good one will "only" make between 330-360hp. Remapped you can expect 390-400hp.
As for the S6, not sure about power outputs, but IIRC they aren't as "down" against quoted as a standard 4.5. Obviously the engine has a different feel, and different (and well-documented) issues all its own.
There are other differences with an S6 Cerb too, such as (off the top of my head) a slower steering rack and (standard at least) softer suspension set-up and higher-profile tyres, so the overall feel is (apparently, never been in one) a little less "hard-edged". Also meant to be smoother at low revs with a lighter clutch.
I'd have some fun driving all three if I was you, do your research and see what you prefer!
Neal
4.2s are better mapped than 4.5s as standard, and often make close to the quoted 360hp
4.5s are not as well-mapped as standard, and a good one will "only" make between 330-360hp. Remapped you can expect 390-400hp.
As for the S6, not sure about power outputs, but IIRC they aren't as "down" against quoted as a standard 4.5. Obviously the engine has a different feel, and different (and well-documented) issues all its own.
There are other differences with an S6 Cerb too, such as (off the top of my head) a slower steering rack and (standard at least) softer suspension set-up and higher-profile tyres, so the overall feel is (apparently, never been in one) a little less "hard-edged". Also meant to be smoother at low revs with a lighter clutch.
I'd have some fun driving all three if I was you, do your research and see what you prefer!
Neal

No experience of the 4.0, but I prefer the 4.2 to the 4.5. The latter's being remapped at the end of the month, so I might change my mind.
But I love the instant free flowing revs of the 4.2, it feels like a motorbike engine
The 4.5 comes in to it's own in the high rev range, where it seems to keep pushing you harder & harder, after the 4.2's run out of puff. I supposed that's down to the extra torque.
For the kind of driving I do, I prefer the manic 4.2
But I love the instant free flowing revs of the 4.2, it feels like a motorbike engine

The 4.5 comes in to it's own in the high rev range, where it seems to keep pushing you harder & harder, after the 4.2's run out of puff. I supposed that's down to the extra torque.
For the kind of driving I do, I prefer the manic 4.2

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ks - That just means you haven't tried a 4.2