on 2040-cars

Auto blog

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.

BMW 3 Series eDrive plug-in hybrid spotted in development

BMW has shown its commitment to the development of hybrid and electric powertrains in recent years, with vehicles in its ActiveHybrid range, electrics like its BMW ActiveE and range-extended EVs like the i3 and i8. Plug-in hybrid-electric vehicles are clearly top-of-mind for the German automaker. We saw spy shots of the PHEV BMW X5 eDrive prototypes about a year ago, and now our shooters have come through with a 3 Series-bodied version of the technology, as well.
In addition to the obvious "Hybrid Test Vehicle" designation you see on the bodysides of this 3er, we also note that a second 'fuel cap' - presumably hiding the electric charge point - is in evidence. It's a fairly safe assumption that this 3 Series is making use of the same turbocharged four-cylinder engine and electric motor configuration that the X5 eDrive used. In the case of the X5, that meant a top electric-only speed of 75 miles per hour, with a range of just under 20 miles, and 0-62 mph in under 7 seconds. With considerably lighter, compact sedan bodywork clothing the PHEV drivetrain, we'd guess that the 3 Series eDrive could improve on each of those numbers.

Evo pits BMW M3 against Porsche Macan in drag battle

If you want to move five passengers in very rapid fashion and you've got a $75,000 budget, two newly introduced four-door models immediately come to mind - both are the highest performing vehicles in their respective segments. But which is faster off the line, to the 60-mile-per-hour benchmark or flat-out over an even longer run? Evo took both to paved aircraft runway to find out.
In lane one we've got the all-new Porsche Macan Turbo, which boasts a twin-turbocharged, 3.6-liter V6 rated at 400 horsepower and 406 pound-feet of torque. The Porsche is fitted with a seven-speed, dual-clutch gearbox, and the 4,244-pound crossover has the traction advantage of standard all-wheel drive. In lane two is the all-new BMW M3, powered by a twin-turbo 3.0-liter inline-six rated at 425 horsepower and 406 pound-feet of torque. It is also equipped with a seven-speed, dual-clutch gearbox, but only the rear wheels of the 3,595-pound sedan are driven. Both the BMW and Porsche arrive with launch control, which helps to remove driver error off the line.
Which automaker's launch control system is better off the line? Does all-wheel-drive grip give the crossover the advantage it needs to overcome its adversary's power-to-weight advantage? Will aerodynamics factor into the results? Which would you put in your garage, and why? The video may surprise you.