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Lotus Evija's wild aero setup is detailed by chief aerodynamicist

The Lotus Evija is a car of firsts for Lotus. To that end, the company has spent a lot of time talking over the details. Today, we get to learn about the wild shape’s aerodynamics and what Lotus engineers were trying to accomplish. Richard Hill, chief aerodynamicist for Lotus takes a dive into all the details, and the video at the top of this post offers a great visual. “Most cars have to punch a hole in the air, to get through using brute force, but the Evija is unique because of its porosity,” Hill says. “The car literally ‘breathesÂ’ the air. The front acts like a mouth; it ingests the air, sucks every kilogram of value from it – in this case, the downforce – then exhales it through that dramatic rear end.” We can see what Hill means as we look at the Evija in photos. Instead of a regular front bumper, this one has pass-throughs that direct the air back into the side of the car. Lotus hasnÂ’t released the all-important coefficient of drag figure yet, but we have to imagine itÂ’s very low. The front splitter (below, left) is responsible for a few different things. The opening in the center takes in air to cool the battery pack that is mounted behind the seats. Then, the outer section of the splitter channels the air to the “e-axle” for cooling of the electrical components. And finally, it also produces downforce.  There are a couple more tunnels for air to pass through in the rear. These “holes” are likely the most distinctive design feature, especially when accentuated with the LED taillights. Hill says that these are also fully functional and help to reduce drag. “They feed the wake rearward to help cut drag,” Hill says. “Think of it this way; without them the Evija would be like a parachute but with them itÂ’s a butterfly net, and they make the car unique in the hypercar world.” On top of all these porous body structures, there are pieces that move. The rear wing can elevate upward from its flush body position and deploy into clean air above, creating more downforce. And then thereÂ’s an F1-style drag reduction system. This uses a horizontal plane that deploys from the car to make it slipperier through air. The final big piece of this puzzle is the underbody sculpting that directs air into the massive rear diffuser. This causes an upwash of air, in turn creating a massive amount of downforce. Hill sums it up quite nicely.

Here are all the EVs with 800V charging available in 2024

As technology advances, electric cars are improving their fast-charging times. That means less time spent waiting at a DC public charger when you’re out on the road. While Level 3 chargers used to provide a maximum of 150 kilowatts of power, 350-kW chargers are become more common, making for super-fast charging Â… if your car is capable of taking advantage of it. So how do automakers improve the charging speed of their EV batteries? Some are turning to higher voltage, specifically 800V charging. What's the difference between 800-volt charging and 400-volt charging? So how does 800V charging improve upon the more common 400V EVs? Put simply, the higher the voltage, the less amperage (current) it requires to charge. In other words, with more voltage, you get more wattage (power, aka charge rate) from the same amperage (current). 800V architecture is also more efficient, with less electrical resistance, so it can use thinner cables and smaller, lighter components while needing less cooling. The tradeoff is that it is more costly, and guess who that cost gets passed on to. While automakers don't break down their pricing to show how much more you're paying for that 800V system, you'll just have to evaluate any potential purchases as a whole, and make your decision based on overall pricing of the vehicle. Thankfully, the 800V EVs on sale now are generally ones we like. Now, 800V charging capability doesn't necessarily mean an EV has 800V vehicle architecture. For instance, the GMC Hummer EV and Chevy Silverado EV operate at 400V, but with their dual battery packs, can switch to 800V when charging by temporarily connecting those packs in series. Currently, there are only a handful of EVs available with 800V charging. But if you are going to find yourself taking longer trips in your EV and using DC fast chargers more often, you might want to consider choosing one with this faster charging capability. With that in mind, these are the EVs available with 800V charging, either on sale now or coming in 2024. 800-volt EVs available in 2024 Audi E-Tron GT Chevrolet Silverado EV Genesis GV60 Genesis Electrified G80 Genesis Electrified GV70 GMC Hummer EV Pickup GMC Hummer EV SUV GMC Sierra EV* Hyundai Ioniq 5 Hyundai Ioniq 6 Kia EV6 Kia EV9 Lotus Eletre* Lotus Emeya* Lucid Air Lucid Gravity* Porsche Macan Electric* Porsche Taycan Ram 1500 REV* Tesla Cybertruck *Coming later in 2024 Green Audi Chevrolet Genesis GMC Hyundai Kia Lotus Porsche Tesla Electric Lucid EV charging

The UK votes for Brexit and it will impact automakers

It's the first morning after the United Kingdom voted for what's become known as Brexit – that is, to leave the European Union and its tariff-free internal market. Now begins a two-year process in which the UK will have to negotiate with the rest of the EU trading bloc, which is its largest export market, about many things. One of them may be tariffs, and that could severely impact any automaker that builds cars in the UK. This doesn't just mean companies that you think of as British, like Mini and Jaguar. Both of those automakers are owned by foreign companies, incidentally. Mini and Rolls-Royce are owned by BMW, Jaguar and Land Rover by Tata Motors of India, and Bentley by the VW Group. Many other automakers produce cars in the UK for sale within that country and also export to the EU. Tariffs could damage the profits of each of these companies, and perhaps cause them to shift manufacturing out of the UK, significantly damaging the country's resurgent manufacturing industry. Autonews Europe dug up some interesting numbers on that last point. Nissan, the country's second-largest auto producer, builds 475k or so cars in the UK but the vast majority are sent abroad. Toyota built 190k cars last year in Britain, of which 75 percent went to the EU and just 10 percent were sold in the country. Investors are skittish at the news. The value of the pound sterling has plummeted by 8 percent as of this writing, at one point yesterday reaching levels not seen since 1985. Shares at Tata Motors, which counts Jaguar and Land Rover as bright jewels in its portfolio, were off by nearly 12 percent according to Autonews Europe. So what happens next? No one's terribly sure, although the feeling seems to be that the jilted EU will impost tariffs of up to 10 percent on UK exports. It's likely that the UK will reciprocate, and thus it'll be more expensive to buy a European-made car in the UK. Both situations will likely negatively affect the country, as both production of new cars and sales to UK consumers will both fall. Evercore Automotive Research figures the combined damage will be roughly $9b in lost profits to automakers, and an as-of-yet unquantified impact on auto production jobs. Perhaps the EU's leaders in Brussels will be in a better mood in two years, and the process won't devolve into a trade war. In the immediate wake of the Brexit vote, though, the mood is grim, the EU leadership is angry, and investors are spooked.