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BMW i3s traction control tech going in all BMW, Mini cars

The BMW i3s is essentially a warmed-up version of the i3 electric car we all know and love. The performance boost isn't huge — just 14 horsepower and 15 pound-feet of torque — but it also gets a new suspension, wheels and tires as well as an improved traction control system. We found the car to benefit from all the updates when we drove it for our First Drive Review, but now BMW has offered up more details on just how the traction control system of the i3s helps make it better to drive. The company says it'll expand the technology to all future BMW and Mini models as well. The i3s's system is calibrated to help it to pull away quickly from a stop, making full use of the instantaneous torque offered by the electric motor. It also improves stability when accelerating out of corners, when using regenerative braking and, of course, when the road conditions are less than ideal. The results are palpable, and with the other improvements the i3s definitely feels stronger off the line, as we found on our drive. It's also about a half-second quicker to 60 miles per hour, at 6.8 seconds. The secret is in the response time of the stability control, which BMW claims is 50 times faster than the conventional system. This is made possible by moving the control process into the powertrain itself, rather than a remote unit. This reduces the signal path and, thus, the response time of the traction control system. BMW's Head of Chassis Development, Peter Langen, said of it, "With their high levels of torque and instantaneous responses to every movement of the accelerator, electric motors already make significantly higher demands on driving stability systems than conventional power units." While engineered to make the most of the electric motor, BMW says the shorter cycles of this traction control system show promise for internal combustion vehicles as well. As such, we'll begin to see the improved technology applied across the BMW and Mini lineups going forward. Related Video:

BMW NA chief: US won't get enough i3 EVs to satisfy demand

Nothing boosts the mystique of a new product like a "sold out" sign, and it appears likely that BMW will go that route with its first plug-in sold in the US. The German automaker won't likely import enough of its new i3 plug-in vehicles to meet US demand, Bloomberg News says, citing BMW North America chief Ludwig Willisch. Willisch added that once everything is up and running, the US will be the world's largest market for the i sub-brand of plug-in vehicles, which we know will also include the far racier i8 plug-in hybrid and likely other models as well. The i3 will arrive at US dealerships by the end of May and US dealers are investing $2.5 million in upgrades in part to accommodate the new i sub-brand. Last summer, BMW said its i3 would have a starting price of $41,350, not factoring in government tax credits nor the gas-powered range extender (which tacks on another $3,950). Both versions will be allowed into the high-occupancy-vehicle lanes, even with only one driver, in California though battery-powered version will get the unlimited white sticker (as opposed to limited green one). Check out our review of the i3 here.

2015 BMW 4 Series Gran Coupe

It's hard to say what a coupe is anymore. Is it merely a car with two doors? Does it have to have an arching roofline? Do frameless windows count for anything? Can a five-door hatchback or even an SUV be a coupe? At some point in the last few years, nearly everything we thought made a coupe a coupe has been challenged by something that calls itself a coupe, but to most people isn't. Our friends at BMW have led most of this line of questioning.
The new 2015 BMW 4 Series Gran Coupe is one of the latest Bimmers to challenge the moniker (which also challenges the idea of "Gran," for that matter), and unlike some of its other "coupe" variations - we're looking at you, X6 - this one is a pretty one. The 4 Series Gran Coupe is essentially a four-door version of the 4 Series, which is itself a two-door version of the 3 Series. Huh? Wouldn't that simply make it another 3 Series? Of course, but this one is prettier, as it uses the 4's sexier body styling, with its lower nose, wider-looking stance and edgier lighting graphics. It is also technically a five-door hatchback, not a sedan per se, and it utilizes frameless side door glass, which apparently does count for something in BMW coupe-land. Significantly, the 4 Gran Coupe's wheelbase is identical to the two-door; if it was longer - as is the case with the 3 Series and 5 Series hatchbacks - that might make it a "Gran Turismo." Confused yet?
We recently got our first chance to drive the 4 Series Gran Coupe at a press launch in Spain, and while the only version we were given was a rear-drive 428i Gran Coupe with the M Sport contents, the harrowing roads around Bilbao gave us a good idea of what this car is all about from a driving dynamics standpoint. Here's some of what we found: