Z4 much difference between 2.5 7 3.0L?

Z4 much difference between 2.5 7 3.0L?

Author
Discussion

Andy G Bmth

Original Poster:

4,977 posts

237 months

Tuesday 29th May 2007
quotequote all
Hi

Title says it all really, looking at the 2 different models, would like a 3.0 but is at top of budget, how much difference is there in kit, performance & MPG between the 2?

cheers

Andy

Andrew D

968 posts

248 months

Wednesday 30th May 2007
quotequote all
Are you looking at pre- or post-facelift?

The facelift complicated things, as the 2.5 motor split into low and high power derivatives, and they added Sport trim (all pre-facelift cars are SE, but it's different to post-facelift SE spec).

belleair302

6,934 posts

215 months

Wednesday 30th May 2007
quotequote all
2.5i SE £25,675 2.5 i Sport £28,260 torque 170/3500, 0-62mph 7.1, 142 mph, CO2 197, 34.4 mpg

2.5 si SE £28,390, 2.5 si Sport £30,750, torque 184/2750, 0-62 mph 6.5, 149 mph, CO2 202, 33.6 mpg

Biggest difference beyond price are torque and acceleration!

Andy G Bmth

Original Poster:

4,977 posts

237 months

Thursday 31st May 2007
quotequote all
Probably pre facelift as i have a budget between 15-16k, is the 3.0 worth the extra money as that the one i got my eye on but it will mean a lower spec one (less optional extras i mean)?

gwatson

2,582 posts

249 months

Thursday 31st May 2007
quotequote all
Hi,

I have a 3.0.... although it is supercharged now smile I test drove the 2.2, 2.5 and 3.0. Naturally the 3.0 quickest. I found the 2.5 an oddball, I acutally preferred the 2.2, it was just as quick when up to speed and very relaxing to drive slowly.

The 3.0 won't cost you more in servicing, road tax, just small increase in fuel. It's a no brainer really.

You also have to remember the 3.0 comes with a lot more equipment as standard.....

G

Andrew D

968 posts

248 months

Thursday 31st May 2007
quotequote all
I'd be surprised if the 3.0i was lower spec than a 2.5i, when I was shopping around I found the opposite to be true.

The 3.0i comes with leather, electrically adjustable seats, (nice, i.e. acceptable) 17" alloys, sports suspension, metallic paint and headlamp wash as standard (and that's not an exhaustive list). It also has six gears. As a result the only options you need to look around for are bigger wheels if you want them, and Sat Nav if you want it.

In terms of performance, the 3.0i will be noticably superior, but it'll be rare that you can use the difference. Whilst the manufacturers technical specs suggest virtually identical fuel consumption, I suspect that's a case of massaging the combined cycle for better numbers, I'd expect 3 to 5 mpg better in a 2.5i than in my 3.0i. There's also a noticable difference in the cost to insure between the different motors.

G makes a good point regarding the 2.2i. With your budget I'd be inclined to go with one of them, as performance will be akin to the 2.5i but the motor is lighter and sounds a lot more special. You don't get the Sport button on the 2.2i, but then I doubt the 2.2i or 2.5i have much use for it anyway.

abarber

1,686 posts

249 months

Thursday 31st May 2007
quotequote all
Chaps,
I'm currently looking at an 04 3ltr, has to be a 3.0 really after having a 911. The extra torque makes it so much easier and relaxing to drive.

Anything in particular to look for on Z4s?


Thanks,

Al.

[TW]Fox

13,362 posts

254 months

Saturday 2nd June 2007
quotequote all
With BMW Sixes its best to just get the biggest one available, as has been said there is no noticeable difference in running costs.

This is why I feel sorry for all the 520i drivers I see. They pay the same as 3 litre guys to run their cars but get... no power.

NorthernBoy

12,642 posts

265 months

Saturday 2nd June 2007
quotequote all
abarber said:
Chaps,
I'm currently looking at an 04 3ltr, has to be a 3.0 really after having a 911. The extra torque makes it so much easier and relaxing to drive.
Anything in particular to look for on Z4s?
Thanks,
Al.
I have just finished looking for one (picked up a 3.0 today), and I'd only say that there are enough absolutley immaculate ones around that you can afford to walk away from anything with any imperfections.

abarber

1,686 posts

249 months

Sunday 3rd June 2007
quotequote all
NorthernBoy said:
abarber said:
Chaps,
I'm currently looking at an 04 3ltr, has to be a 3.0 really after having a 911. The extra torque makes it so much easier and relaxing to drive.
Anything in particular to look for on Z4s?
Thanks,
Al.
I have just finished looking for one (picked up a 3.0 today), and I'd only say that there are enough absolutley immaculate ones around that you can afford to walk away from anything with any imperfections.
Thanks. Already looked at one at car giant, that was a bit of a shed. Another one today in Montego blue. Hopefully much better smile

FesterNath

652 posts

244 months

Monday 4th June 2007
quotequote all
Andrew D said:
I'd be surprised if the 3.0i was lower spec than a 2.5i, when I was shopping around I found the opposite to be true.

The 3.0i comes with leather, electrically adjustable seats, (nice, i.e. acceptable) 17" alloys, sports suspension, metallic paint and headlamp wash as standard (and that's not an exhaustive list). It also has six gears. As a result the only options you need to look around for are bigger wheels if you want them, and Sat Nav if you want it.

In terms of performance, the 3.0i will be noticably superior, but it'll be rare that you can use the difference. Whilst the manufacturers technical specs suggest virtually identical fuel consumption, I suspect that's a case of massaging the combined cycle for better numbers, I'd expect 3 to 5 mpg better in a 2.5i than in my 3.0i. There's also a noticable difference in the cost to insure between the different motors.

G makes a good point regarding the 2.2i. With your budget I'd be inclined to go with one of them, as performance will be akin to the 2.5i but the motor is lighter and sounds a lot more special. You don't get the Sport button on the 2.2i, but then I doubt the 2.2i or 2.5i have much use for it anyway.
What makes the 2.2 lighter than the 2.5?

Andrew D

968 posts

248 months

Monday 4th June 2007
quotequote all
FesterNath said:
What makes the 2.2 lighter than the 2.5?
That fact that it's a smaller block. The 2.5i has the same block as the 3.0i, only shorter stroke. As evidenced by the technical specs.

FesterNath

652 posts

244 months

Monday 4th June 2007
quotequote all
Andrew D said:
FesterNath said:
What makes the 2.2 lighter than the 2.5?
That fact that it's a smaller block. The 2.5i has the same block as the 3.0i, only shorter stroke. As evidenced by the technical specs.
Is it a smaller block? My guess is that it is the same, with a smaller bore and stroke. The weight savings from 300cc over six cylinders would, I think you'll find, be negligable. I tend to find not wearing a sock makes the same difference wink

Sortie 10

729 posts

260 months

Monday 4th June 2007
quotequote all
Sport button on 2.5 does make a difference, particularly if you have an SMG box. Throttle response is noticeably different and the weight on the steering changes too. I tend to drive my car in non-sport mode in the urban jungle, then hit the magic button when the roads open up.

I can't say I have studied the figures much (could someone post 2.2/2.5/3.0 for pre-facelift cars?), but I had a feeling that the 2.5 was midway between 2.2 and 3.0 in bhp terms (unsure about torque) and similarly in acceleration, top speed is largely irrelevant but IIRC 2.2 142mph, 2.5 149mph 3.0 155mph (governed).
As far as choice is concerned you should find many more 2.5s than 2.2s as the latter was late to the party; watch the spec too 2.5s and 3.0s came in SE trim as standard, but I believe there was a "basic" 2.2 without the electric roof.

Satisfied 2.5 owner (just sailed its second MOT), but one who looks longingly at the silver grilled 3.0s (lesser cars have blick kidney inserts)

Andrew D

968 posts

248 months

Tuesday 5th June 2007
quotequote all
2.2i = 170bhp
2.5i = 192bhp
3.0i = 231bhp

All three pre-facelift models were SE trim. The 2.0i (140bhp) was the only one that gave you a choice of SE or not. So the only difference between the 2.2i and the 2.5i is 22bhp and the Sport button.

Incidentally, I'm not sure if the lack of the Sport button is as cut-and-dried as it might at first seem. I suspect that the steering and throttle response on the 2.2i will be a halfway house between the "Normal" and Sport settings on the 2.5i/3.0i, rather than just being the "Normal" setting.