
BMW i3 electric car undergoing winter testing, February 2013
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With the 2014 BMW i3 electric car launch getting closer, the rumor mill is heating up.
BMW will unveil its first production battery electric car at this fall's Frankfurt Motor Show, after showing a number of concept cars in both four-door and coupe forms.
It has already given rides in BMW i3 test cars to a handful of lucky journalists (not us, sadly).
We know the basic specs of the car: It will have a 21- or 22-kilowatt-hour lithium-ion battery pack in the floorpan that powers a 125-kilowatt (170-hp) electric motor driving the rear wheels.
But one piece of information we don't have is the U.S. price.
Usually, we'd wait to speculate on this until closer to launch date. But there's been a great deal of online discussion about that very topic.
After reading multiple online sources, and adding a bit of our own informed speculation, what follows are our best guesses about price, timing, and other BMW i3 issues.
PRICE: We're guessing that base price will fall between $42,000 and $48,000. If we had to narrow it down, we'd put it between $44,000 and $46,000.
That is, of course, before the $7,500 Federal tax credit, a California $2,500 purchase rebate, and any number of other state, regional, local, and corporate incentives.
QUICK CHARGING: It's not clear whether the new CCS quick-charging system will be standard on the BMW i3 or whether it'll be an option. If it's optional, we'd expect the price to come in around $1,000--although it might also be bundled into a more expensive option package with other equipment.
RANGE: BMW has quoted only European test-cycle figures, but using a rough translation, we'd expect the BMW i3 to be rated at 85 to 100 miles of range on the U.S. test cycle.
RANGE EXTENDER: One of the most interesting features of the BMW i3 will be its "ReX" range-extending two-cylinder engine. Based on a motorcycle engine and nestled under the rear deck, the 0.65-liter ReX will power a generator that puts out 34 hp (25 kW).
That's enough to power the i3 on level ground, but not enough to move a heavily loaded car uphill without losing speed. BMW is pitching the ReX as an emergency backup, and the additional range it provides from a 2.3-gallon gas tank is expected to be less than the range rating of the battery itself.
The ReX seems likely to be offered as optional equipment for something like $3,000.
OPTIONS: Very little word yet on other options, but we suspect leather seats will be one extra-cost offering. Another will be 20-inch wheels to replace the standard 19-inch items.
PERFORMANCE: The BMW i3 is likely to accelerate from 0 to 60 mph in 7 to 8 seconds under full throttle.
SCHEDULE: The BMW i3 will be launched next week as a 2014 model for Europe, with first deliveries to start this fall. It will arrive in the U.S. sometime between December and February, as either a 2014 or 2015 model.
RESERVATION PROCESS: BMW already allows interested buyers to "reserve a place in line" for an i3 in Germany. The company hasn't yet said whether it will do the same here in the States, as Nissan did to launch its Leaf and Tesla still does for its Model S.
If BMW does set up a U.S. reservation system, it most likely won't happen until closer to the launch date--perhaps late summer or sometime this fall.
Some BMW dealers may also offer to take deposits to guarantee interested parties an early delivery from among the first i3 electric cars they receive. But that's an individual dealership's choice, and not something BMW can necessarily control.
SO, that's our rundown of the BMW i3 rumor mill.
If you've seen other information, leave it below in the Comments.
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Two questions.
1. If there is an extender in the back, then once the option is chosen, then are there still any storage space left? If the extender will be located in the back, what is in the front? A Frunk? Where is motor located? It would make sense for them to be in the back since it is a RWD. So, is the front where the storage space is?
2. I assume the two cylinder engine will be air cooled for its compact size and cost. So, that engine won't be able to provide any heat? Is the battery going to be liquid cooled/heated? And will the cabin be heated and cooled electrically?
2)Yes, the battery is thermally managed with a liquid based system and the cabin is heated & cooled electrically as it is on the ActiveE.
What is in the front of the car? An empty space?
Neil
http://www.greencarreports.com/news/1082456_2013-nissan-leaf-75-mile-range-anticipated-in-new-test-by-epa
The European ratings are on a much gentler test cycle than the calculations used by the EPA, and are far more optimistic than most U.S. drivers will ever achieve.
If both of those are true, then the extended range MPG is no better than 38 mpg...
"the 0.65-liter ReX will power a generator that puts out 34 hp (25 kW)."
38 MPG is a pretty poor efficiency number for a 34 HP engine... Then again, I seriously doubt the engine is powerful enough to have any meaningful speed. It is probably something that will allow you to "limp" to the next charging station...
mph kW
--------
35 | 5.6
40 | 6.8
45 | 8.7
50 | 10.9
55 | 12.8
60 | 15.4
65 | 18.0
70 | 21.2
75 | 25.0
Those are "constant" speed on flat surface consumption. If you do the math for 24KWh and the speed, then you will see that it "almost" matches Leaf's EPA range with those speed with no other energy draws.
So, any acceleration will take far more energy than the power that you listed here.
Did you list the amount of power it takes for Leaf to accelerate to 60 mph in 10 seconds? Also, what about small hills?
Another thing to consider is that BMW probably care about handling. It might have better Cd, but I am pretty sure it will have wider or more "sporty" tires. Those sporty tires will be a much bigger drag at higher speed...
That's simply not true, and the real-world energy requirements to propel a similarly sized vehicle demonstrate that.
The question of hill climbs came up before. It's difficult to answer without further information from BMW. There is the possibility that they will use battery power to augment the REx as necessary.
This would be OK in urban driving, but not when crossing a mountain range. As to acceleration: 25 kW are adequate, but not for jack-rabbit starts. Battery power could be used to augment here too. The REx is likely not meant for every day use.
http://www.greencarreports.com/news/1081850_bmw-i3-electric-car-motorcycle-engine-range-extender-for-250-mile-range
Until Infiniti provides more info on the LE, I'll wait to comment. Yes, it has potential but there are too many unknowns at this stage, IMHO.
BTW, the Rav4 EV is clearly a compliance car whreas the i3 seems like it is not going to be a compliance car for BMW being designed, engineered, and built strictly as an ev.
MrEnergyCzar
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