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Mini Cooper SE Convertible wheels made entirely from recycled aluminum

Mini has revealed an interesting fact about its limited-run Mini Cooper SE Convertible: It's the first production car with wheels made from 100% recycled aluminum. Despite sharing the same look as wheels available on the regular SE hatch, they're actually much more environmentally friendly. The wheels were developed with Swiss wheel manufacturer Ronal. The company sells aftermarket wheels under the Ronal and Speedline brands, and it supplies OEMs. And it's no stranger to more environmentally-friendly wheel production. It supplies wheels for the Audi E-Tron GT that are made using a smelting process that produces oxygen rather than carbon dioxide, and it now has a line of claimed carbon-neutral aftermarket wheels. But back to the Mini's wheels. Using all recycled aluminum has the obvious benefit of not requiring new aluminum to be manufactured. But the benefits are greater than just the raw material use. Mini points out that a major improvement in carbon emissions comes from being able to skip the electrolysis process for new aluminum manufacturing. Pure aluminum is extracted from aluminum oxide (which is in turn taken from the mineral bauxite). To do this large amounts of electricity are passed through molten solutions of aluminum oxide and cryolite (which takes energy to heat) across graphite cathodes and annodes. Not only does this use a lot of electricity that has its own carbon costs, the oxygen that separates from the aluminum bonds to the graphite annodes, yielding more carbon dioxide (which is why the production of those Audi wheels is also interesting). In total, Mini says the recycled wheel production reduces carbon emissions by 75%. More specifically, it estimates about 0.16 kilograms (0.35 pounds) per kilogram (2.2 pounds) of aluminum used. Mini also stresses that this process still maintains all the strength of conventional wheels, just in a greener way. And of course, the wheels themselves are recyclable again. Mini, and BMW more broadly, are looking at ways to upscale the process and to source suitable recyclable products, likely other old wheels from cars no longer on the road. Though neither company said anything about when we'll see fully recycled wheels more widely available. Related Video: MINI Electric Pacesetter inside and out

BMW i8 and M1 reunited in mid-engined Bavarian retrospective

The BMW i8 may be the cutting edge today – it did, after all, just win our Technology of the Year award – but as rare an event as it is, it's not the first time that BMW has put out an extreme mid-engined supercar. The last time was in the late 1970s with the M1, a Giugiaro-designed, (partially) Lamborghini-developed piece of exotic machinery. The better part of four decades later, Auto Express has brought together an original M1 with its spiritual (if much more advanced) successor for the video comparison that was bound to happen. The question we can't help but ponder, initial sales success aside, is whether the i8 will mature into a classic in the same way the M1 has.

BMW and Jaguar Land Rover to jointly develop electric car tech

FRANKFURT – BMW and Jaguar Land Rover on Wednesday said they will jointly develop electric motors, transmissions and power electronics, unveiling yet another industry alliance designed to lower the costs of developing electric cars. Both carmakers are under pressure to roll out zero-emission vehicles to meet stringent anti-pollution rules, but have struggled to maintain profit margins faced with the rising costs of making electric, connected and autonomous cars. "Together, we have the opportunity to cater more effectively for customer needs by shortening development time and bringing vehicles and state-of-the-art technologies more rapidly to market," said BMW board member Klaus Froehlich. BMW and Jaguar Land Rover said they will save costs through shared development, production planning and joint purchasing of electric car components. Both companies will produce electric drivetrains in their own manufacturing facilities, BMW said. The BMW Jaguar Land Rover pact comes as rivals FiatChrysler and Renault explore a $35 billion tie-up of the Italian-American and French carmaking groups. Nick Rogers, Jaguar Land Rover's engineering director said, "We've proven we can build world beating electric cars but now we need to scale the technology to support the next generation of Jaguar and Land Rover products." BMW was in talks with rival Daimler about developing electric car components but was also in discussions with Jaguar Land Rover, a company it once owned, to explore an alliance on engines. BMW already has a deal to supply an 8 cylinder engine to Jaguar Land Rover. Carmakers are increasingly open to sharing electric car parts because the technology is expensive and because customers no longer buy a car based on what engine a vehicle has. "Carmakers are much less precious about sharing electric car technology because it is much harder to create product differentiation with electric car tech. They all accelerate fast, and everybody can do quality and ride and handling," according to Carl-Peter Forster a former chief executive of Tata Motors and a former BMW executive. Jaguar Land Rover is still run by former BMW managers, including Ralf Speth the company's chief executive who spent 20 years at BMW prior to joining JLR, and Wolfgang Ziebart, the engineer who oversaw Jaguar's I-Pace electric car program, who is a former head of research and development at BMW.