2012 Lotus Evora 2+2 on 2040-cars

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2017 Renault Alpine still looks like a Lotus

Two years ago, an oddly modified Lotus Exige was photographed speeding around the Nurburgring. While that car looked British, at the time Renault's engineers were reportedly developing the suspension for the future Alpine sports coupe underneath with some help from the folks at Ohlins. Now, our spies have spotted this weird Lotus-bodied mule out testing, and it might be a major hint that development for the reborn French brand is getting serious again. Unfortunately, it's hard to pull many details about the future Alpine just from this mule. Up front the air extractors are noticeably covered, and at the rear there's now a panel hiding the engine with just some small vents near the very back. The roof-mounted scoop appears to be the major means of sending cool air to the powertrain. Alpine has been back in the news as of late. At the 24 Hours of Le Mans, the brand's Celebration Concept was unveiled but without many real details. Then, at the Goodwood Festival of Speed, the car was filmed actually moving under its own power. Earlier reports suggest that a production version, possibly called the AS1, might come in 2017 with around 250 horsepower on tap from an engine mounted behind the driver. Engineers would keep weight as low as possible to make the most from that power. While no version in the US is likely, prices in Europe might be about the equivalent of $34,000 to $40,000.

This is how ground effects work in a nutshell

There are two ways to generate downforce. One is with all manner of wings and spoilers on the surface of the vehicle. The other is with ground effects. One you can clearly see, the other remains something of a hidden mystery. Fortunately, the good folks at Lotus and Goodwood are here to dumb it down for us non-engineer types. It's called Bernoulli's Principle, named after Swiss physicist Daniel Bernoulli who literally wrote the book on the subject way back in the 1700s. Countless engineers have spent their careers focused on its study and application, but the crux of the matter is that, as the speed of air (or other "fluid") increases, pressure decreases. Play with the air's increasing speed and decreasing pressure just right and you can generate downforce underneath the body of a car without significantly increasing drag as you would with surface spoilers. For evidence of how Bernoulli's Principle applies in practical terms, just look at the last Ferrari to pack a turbocharged V8 in the middle and the latest one. The F40 had a giant wing on the back, where the 488 GTB has none. But because the 488 uses underbody aerodynamics (or "ground effects"), it generates significantly more downforce than the winged F40 ever could, and at lower speeds. Ferrari, however, was not the first outfit to harness the power of ground effects. Lotus did with the legendary 79 that Mario Andretti drove to the world championship back in 1978. That was the genius of Colin Chapman, and to explain how it all works in layman's terms, our friends over at Goodwood Road & Racing brought in Colin's son Clive Chapman, head of Classic Team Lotus, to put together the video above. Related Video:

Jay Leno checks out Ronin RS 211, a Lotus Elise transformed

You know a vehicle is going to be something special when you need a pair of goggles to drive it, and this highly customized Lotus lives up to that promise. The owner refers to his one-off as the Ronin RS 211, but underneath that barely there body are a few parts left from a 2005 Lotus Elise. Owner Frank Profera totaled his Elise when a Porsche rear-ended it, but he wasn't willing to give the sports car up. With a canvas to build from, Profera took inspiration from the Lotus 2-Eleven and Can-Am cars, and the Ronin resulted. Not content with just a svelte body, the powertrain received just as thorough an upgrade as the looks. The engine still displaces 1.8 liters but features improved internals. The piece de resistance, though, is the custom turbocharger setup that runs on a mix of pump gas and alcohol to put out a claimed 680 horsepower, which sounds great screaming through the California canyons. "Ronin" is a Japanese word for a master-less samurai, and with its featherlight weight, just a vestigial windshield and gobs of power, the RS 211 is a fantastic automotive symbol for the type of sword such a warrior might carry. Watch as Jay takes an extra long drive on the latest episode of Jay Leno's Garage.