2009 Bmw Z4 Sdrive35i on 2040-cars

Auto blog

BMW mulled ten, eight, and six-cylinder engines for i8 before going hybrid

There's little doubt that the 2015 BMW i8 is one of the most radical and groundbreaking performance cars this industry has seen in a long time. From its unique carbon-intensive construction to its 1.5-liter, three-cylinder and electric motor plug-in powertrain to its concept-car appearance, the flagbearer for BMW's new i venture challenges the very notion of what it takes to be a supercar.
Yet apparently the i8 almost didn't do that at all. Yes, it probably still would've had innovative assembly techniques, serious performance and come-hither bodywork, but according to a new report in the Telegraaf, it was very nearly a much more conventional beast, drawing its power from a V10 engine. According to the report, that line of development never got much beyond the drawing board, but BMW engineers then shifted their focus to both V8 and six-cylinder motivation, going so far as to build prototype cars. The higher cylinder-count engines were eventually dropped altogether after BMW decided to turn the i8 into a hybrid, with the six-cylinder reportedly nixed due to heat management and weight issues. In the end, of course, BMW went with the PHEV powertrain that offers a total system output of 362 horsepower and 420 pound-feet of torque - plenty of thrust for this lightweight, all-wheel drive coupe while still enabling an incredible 94 miles to the gallon on the EU cycle. Regardless of how it turned out, it's still fascinating to think that BMW didn't have a much firmer conceptual idea of what it was after when it started the i8's development.
Here at Autoblog, we're genuinely thrilled about this new generation of greener hybrid super- and hypercars, a movement spearheaded by the i8, Porsche 918 Spyder, Ferrari LaFerrari and McLaren P1. But even so, our inner-gearheads can't help but wonder what might have been had BMW pursued a more conventional i8, either in place of, or in addition to, the car they did build. What do you think? Have your say in Comments.

BMW i3, i8 sales strong enough to reach almost 17,800 in 2014

BMW makes its futuristic i brand vehicles – the i3 and i8 – at a plant in Leipzig, Germany. But the customers most willing to buy one of these plug-in cars live in the country where the lightweight carbon fiber used in the body structure is made: the United States. Speaking at the Detroit Auto Show this week, Ian Robertson, member of the Board of Management at BMW AG, said, "The US is already our largest market for our electric vehicles, the BMW i3 and BMW i8. Worldwide, we sold close to 18,000 BMW i models last year. Nearly three-quarters of these sales occurred in the second half of the year, when the global rollout – including the US – really got underway. Demand for these vehicles continues to be high and I'm delighted that we've been able to increase production to meet that demand." That sounds great, but the numbers aren't huge. BMW sold 6,092 i3s and 555 i8s (for a total of 6,647 i vehicles) in the US last year. Globally, BMW sold over two million vehicles in 2014, and 17,793 of those were plug-in i vehicles (16,052 of the i3 and 1,741 i8s). The production increase wasn't huge. BMW was making just 10 i8 vehicles a day at the beginning, but doubled that to 20 last fall. Since last spring (around April or May), the company has been making over 100 i3s a day, BMW spokesperson Verena Von L'estocq tells AutoblogGreen. Getting production right this first year has meant slow going, but "We're comfortable now," she said, adding that BMW expects more production increases in the future. Related Video:

BMW looking to fix i3 acceleration problem uncovered by Consumer Reports

The BMW i3 has been hailed in some quarters as the future of electric mobility, what with its innovative carbon-fiber-reinforced plastic body and commitment to sustainable materials wherever possible. The modernist little hatch is even available with a 650cc two-cylinder gas engine with 34 horsepower to act as a range-extender for those who want it. However, that optional engine might have a drawback - at least for the moment.
Consumer Reports brought the problem to light when one of its drivers was behind the wheel of an i3 using the range-extender. When the driver attempted to pass another vehicle on a rolling, two-lane road, the BMW suddenly had no power to accelerate - a scary situation. CR started examining the car and found something pretty shocking: After driving at a constant speed for a while without any regenerative braking in range-extended mode, acceleration to 60 miles per hour plummeted from about 9 seconds normally to a staggering 27 to 40 seconds in their testing.
A BMW spokesperson told CR that it knows about the problem and has a fix coming next spring that also works on current models. The upgrade includes a state of charge indicator, a warning about loss of power and uses the car's navigation to boost the battery before driving on rolling terrain. It is not clear if the severe power deficiency will also eventually result in a recall.