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      04-20-2014, 02:52 PM   #1
ddk632
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BMW i8 specs updated on BMWUSA, dropping 0-60 to 4.2 seconds

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Not sure if anyone else noticed but it must have been changed very recently... I check it often

http://www.bmwusa.com/standard/conte...8redirect.aspx

Interestingly the specs say 0-60mph in 4.2secs (nice!!) although 357hp down from earlier estimates of 362. I believe I read somewhere (and it makes sense) this is because the power peaks of both engines overlap in such a way that the combined maximum is 357, even though the individual electric motor peak output is 131hp and the Turbo-3 is 231hp.

Surprisingly, though, the MPG figure isn't up there with the main 4 specs (price, 0-60, hp, charge time).
I bet it's because it hasn't been rated by the EPA yet.. in fact, "mpg" doesn't even appear on the page at all.

Screenshot attached in case they take it down like they did the last one!
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Last edited by ddk632; 04-20-2014 at 03:00 PM.
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      04-20-2014, 03:32 PM   #2
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Good find David.
I check BMW.co.uk frequently as well, but this has old info (no mention of laser lights etc.).
BMW.com is better than the UK site, as although they are very similar, at least the .com site quotes laser lights being available from November (2014).

I must be pshycic as I've been quoting the 0-60 mph time as probably being 4.2 seconds on the basis that the official 0-62 mph (0-100 km/h) is 4.4 seconds. The i8 is damn quick! LOL

P.S. I love the dash display screenshots showing how the display changes depending on what driving mode you're in
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      04-20-2014, 04:00 PM   #3
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I figured the 0-60 time would be a bit quicker as well. I think they rated it as 4.3 for 0-100kph recently, and now 4.2 for 0-60mph. Makes sense.

It will likely be quicker in the real world if BMW's history of being conservative with the numbers is any indication. Can't wait to see some full reviews of the production i8!
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      04-20-2014, 04:13 PM   #4
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Originally Posted by ddk632 View Post
It will likely be quicker in the real world if BMW's history of being conservative with the numbers is any indication. Can't wait to see some full reviews of the production i8!
Yeah, plus the instant torque from the electric motor will make it feel even quicker from 0-30 mph (e.g. when pulling away from lights).
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      04-20-2014, 06:16 PM   #5
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Originally Posted by ddk632 View Post
I figured the 0-60 time would be a bit quicker as well. I think they rated it as 4.3 for 0-100kph recently, and now 4.2 for 0-60mph. Makes sense.

It will likely be quicker in the real world if BMW's history of being conservative with the numbers is any indication. Can't wait to see some full reviews of the production i8!
BMW numbers usually refer to what anyone should be able to replicate in less than ideal conditions. Which is why, under good consistent conditions the press usually get better numbers.
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      04-20-2014, 06:51 PM   #6
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Looks like it's us hard core i8 fans checking out the blogs for the latest posts on Easter. Let's hope the Easter bunny will deliver the display key and have BMW address some of the noted interior deficiencies.
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      04-22-2014, 10:20 AM   #7
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Quote:
Originally Posted by ddk632 View Post
Not sure if anyone else noticed but it must have been changed very recently... I check it often

http://www.bmwusa.com/standard/conte...8redirect.aspx

Interestingly the specs say 0-60mph in 4.2secs (nice!!) although 357hp down from earlier estimates of 362. I believe I read somewhere (and it makes sense) this is because the power peaks of both engines overlap in such a way that the combined maximum is 357, even though the individual electric motor peak output is 131hp and the Turbo-3 is 231hp.

Surprisingly, though, the MPG figure isn't up there with the main 4 specs (price, 0-60, hp, charge time).
I bet it's because it hasn't been rated by the EPA yet.. in fact, "mpg" doesn't even appear on the page at all.

Screenshot attached in case they take it down like they did the last one!
Wow that's pretty sweet. The mpg isn't on there. I'm pretty sure it will increase above the 94 mpg already achieved.
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      04-22-2014, 03:07 PM   #8
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If you go on a weekend drive flogging it through the canyons. How long does full power last? I figure at some point you will be driving a $140k 3 cylinder car.
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      04-22-2014, 03:20 PM   #9
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If you go on a weekend drive flogging it through the canyons. How long does full power last? I figure at some point you will be driving a $140k 3 cylinder car.
Canyon driving isn't 10/10ths like track driving so the battery won't get as heated (the reason for limp mode) and it will also keep charge due to brake energy regeneration.

This is one of those real world tests I am looking forward to when the car mags get their hands on some long term i8s.

Practically speaking, assuming you can recharge the battery in the evenings of this weekend getaway, you should end up cruising in full on sport hybrid mode most of the time. This is of course just a guess.

I do know it won't last long on the track, but if you're driving in the canyons the way you would drive on the track, you'll probably end up in a ditch or become soulmates with a deer before the battery runs out, anyway.

[ Edit: That will not happen - see post #10, post #11 in this thread below... the battery will stay charged as long as you're not driving all out 9/10ths or harder ]
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      04-22-2014, 04:21 PM   #10
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Quote:
Originally Posted by ddk632 View Post
At some point you will, but where that point is, no one knows. Canyon driving isn't 10/10ths like track driving so the battery won't get as heated (the reason for limp mode) and it will also keep charge due to brake energy regeneration.

This is one of those real world tests I am looking forward to when the car mags get their hands on some long term i8s.

Practically speaking, assuming you can recharge the battery in the evenings of this weekend getaway, you should end up cruising in full on sport hybrid mode most of the time. This is of course just a guess.

I do know it won't last long on the track, but if you're driving in the canyons the way you would drive on the track, you'll probably end up in a ditch or become soulmates with a deer before the battery runs out, anyway.
I think the CAR review said that lapping at 7 or 8/10ths was enough to recharge the battery.
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      04-22-2014, 04:30 PM   #11
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Thanks Carac good point. I had a brain fart there.

In fact, Blipit_, if you check this thread from December when I met Jacob Harb, the BMW i Brand Manager, I asked him that exact question:

http://bmwi.bimmerpost.com/forums/sh...d.php?t=922608

Here's what he told me as I posted in the above thread:

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1. Will the electric motor keep charge if you drive the i8 hard, or at high speeds? Say if you take it to the track?

"It's an i8, not an M8". The BMW i Brand Manager confirmed that if you drive normally on the street, even going fast, the electric motor has its own alternator and will keep charged. That means you can do a cross country road trip and just use gas stations if you cannot charge the car, and the electric motor will stay charged giving you full power of both motors constantly.

Now, if you want to take the i8 to the track - some of us had discussed this on another forum - the issue becomes with battery heat more so than with motor charge. The batteries will get too hot from driving at 10/10ths and will be automatically shut off, leaving you with just the gas motor. The BMW i Brand Manager said the car will do laps, but not sessions. I have decided that taking this car to the track will be a bad idea. His explanation regarding batteries overheating made perfect sense.
So essentially, unless you're driving the snot out of it, you can actually get by driving spiritedly but not insanely, and not need to charge the car at all, and will never just be driving on the gas engine alone.
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      04-22-2014, 04:49 PM   #12
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I wonder what 1/4 mile times will be. Will love to see it match up against the M4.

Amazing what BMW have done with this car.
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      04-22-2014, 06:19 PM   #13
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I really hope to see one on the road here soon....
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      04-22-2014, 07:12 PM   #14
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I really hope to see one on the road here soon....
Me too
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      04-22-2014, 08:26 PM   #15
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357 hp for 130k+.... I'll stick with a M car....BMW should of let M have a take at this car, like porsche 918 numbers...
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      04-22-2014, 08:37 PM   #16
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357 hp for 130k+.... I'll stick with a M car....BMW should of let M have a take at this car, like porsche 918 numbers...
You can get a Mustang GT500 for $65k which has 662hp if power for the money is what it's about.

Regarding Porsche 918 numbers, well those come with Porsche 918 pricing. The 918 is $850k base vs the i8 being $135k base. The i8 is much closer to Earth (i.e., relatively attainable compared to the 918).

The 918, P1, and LaFerrari are proper Hypercars. They use the electric motors to boost performance, not to increase efficiency. The i8 is an entirely different concept; except the use of a hybrid drivetrain, there really aren't any other similarities between those cars.
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      04-22-2014, 10:29 PM   #17
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P.S. I love the dash display screenshots showing how the display changes depending on what driving mode you're in
I already have something every similar (graphics slightly different) on my F10 with the multifunction instrument. I can never imagine going back to a regular cluster...

http://www.bmw.com/com/en/newvehicle...l_display.html
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      04-23-2014, 12:43 AM   #18
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Quote:
Originally Posted by ddk632 View Post
although 357hp down from earlier estimates of 362. I believe I read somewhere (and it makes sense) this is because the power peaks of both engines overlap in such a way that the combined maximum is 357, even though the individual electric motor peak output is 131hp and the Turbo-3 is 231hp.
It has nothing to do with the power peaks. It's all about different methods of measuring HP. 1 SAE HP (US) is 1.01 DIN HP (Europe).
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      04-23-2014, 12:46 AM   #19
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130k+ is pretty steep, how much is the new NSX does anyone know? i think that's the i8's primary competitor, as well as 991, R8, amg GT etc
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      04-23-2014, 03:25 AM   #20
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130k+ is pretty steep, how much is the new NSX does anyone know? i think that's the i8's primary competitor, as well as 991, R8, amg GT etc
Different cars - they all only have traditional ICE petrol engines. Although it does sound as though Audi have re-opened their R8 e-Tron (electric only car) project, albeit it will probably be called something else.
I had the 991 for several days, and whilst it is a vast improvement over the 997, it still isn't the car I was after. As for the R8, I've never taken a shine to it, nor the Merc's AMGs either TBH.
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      04-23-2014, 06:40 AM   #21
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It has nothing to do with the power peaks. It's all about different methods of measuring HP. 1 SAE HP (US) is 1.01 DIN HP (Europe).
Interesting. I can understand different standards organizations having slightly different ratings, but in this case, wouldn't the individual ratings of the electric motor and the Turbo-3 in the i8 also be different?

The i8 (according to the bmwusa.com i8 page) has a 231hp Turbo-3 motor, and a 131hp electric motor. The combined output is 357hp. All 3 specs are listed on the US site so I would imagine are all SAE. That's why I thought peaks. I can't remember where I read that, though.
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      04-23-2014, 08:16 AM   #22
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357 hp for 130k+.... I'll stick with a M car....BMW should of let M have a take at this car, like porsche 918 numbers...
I really think BMW will make something close to an M down the road. They have been putting off a super car for decades, so maybe we'll see it using this as a base....
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