2006 Bmw Z4 M Coupe S54 Nav Sepang Bronze Metallic/light Sepang Extended Leather on 2040-cars

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How to charge up your BMW i3 with a Honda

Behold a cheaper version of BMW's range extender for its i3 plug-in. And it's brought to you by ... Honda? Sort of, if you take the approach that Gadget Review took when it looked for an alternative to ponying up the $4,000 or so for the gas-powered i3 range extender that comes from the factory. What was procured was a Honda portable generator for Home Depot for the experiment, which involved gassing the generator up in a parking lot, plugging in the i3 and going out for a cup of coffee. The result was that, after about a half-hour of charging, the i3 picked up about four miles of driving range. Not exactly revolutionary but it least a bit instructive. And given that Honda generators start at about $800, the idea, while clunky, is potentially cash-saving. Gadget Review briefly took the experiment one-step further by trying to run the generator inside the back of the car and plugging in, complete with a rigged-up ventilation system, but the host thought better of it once he realized that there'd be suffocation involved. Why this was never tried on the Nissan Leaf, we'll never know. Check out Gadget Review's five-minute video below.

BMW M4 Convertible spied with naked top and trunk

Our trusty spy photographers have been at it again, snagging these first images of the forthcoming BMW M4 Convertible without camouflage on its retractable roof and rear deck. You'll recall that this is not the first time we've seen the followup to the M3 Convertible, but that the last batch of images we had were encumbered by a lot more camouflage - this car is virtually naked by comparison.
Not surprisingly, the M4 looks to share its folding hardtop design with the standard 4 Series droptop, and it should operate in a similar manner as well. It's no surprise, but it looks like BMW is going to try and make the transition from M4 Coupe to M4 Convertible as effortless as previous efforts converting the M3 to an M3 Convertible. That should mean that below the beltline, this car is nearly identical to the coupe we saw in Detroit.
As for the camo'd features on these spy photos, the hood, front fascia, rear fascia, quarter panels, side sills and mirrors have all been shown on the M4 Coupe, and don't really bear mentioning. There's been no word of just where the M4 Convertible will make its debut, although considering the lack of disguise on this car, Geneva seems like a likely destination.

BMW Vision Gran Turismo takes M235i Racing to the virtual extreme [w/videos]

Late last year, Mercedes-AMG worked up a concept car called the Vision Gran Turismo. It presented it at the Los Angeles Auto Show, but that wasn't the point: the point was that it would feature in Gran Turismo 6 on the PlayStation 3. It wasn't the first concept created specifically for the popular driving simulator - following similar projects by Citroën and Red Bull Racing - and as we reported just a month later, it wouldn't be the last. What we have here is the next.
Looking like an even more extreme version of the M235i Racing, the BMW Vision Gran Turismo concept builds on "the tradition of the successful BMW touring cars of the 1970s" in a heart-pumping, if unfortunately strictly virtual form. It's got more extreme aero than the aforementioned M235i Racing and a striking take on the M division's signature light blue, dark blue and red stripe over white livery.
Underneath the digital bonnet sits the same 3.0-liter inline six as the M235i, but pumping out a prodigious (if theoretical) 549 horsepower - far more than the 333 hp in the actual Racing version or the 320 hp in the roadgoing model. Of course BMW has given it an ideal 50:50 front-rear weight distribution and a curb weight of 2,600 lbs - nearly a thousand pounds less than the roadgoing M235i.