2005 Lotus Elise Base Convertible 2-door 1.8l on 2040-cars

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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:

Lotus' new position: Much improved, if Volvo's experience is a guide

Out today is the news that Geely Holding will acquire controlling interest in British sports car maker Lotus Cars. While some 20 years ago the Chinese acquisition of a British automaker might have inspired grumbling from aggrieved Brits (and the handful of Lotus enthusiasts), the world has moved on. And so – thankfully – can Lotus. To suggest Lotus' business history has been checkered is to broaden the definition of "checkered." With its beginnings in the early '50s as a maker of component cars for competition, Lotus founder Colin Chapman – in a manner not unlike his postwar contemporary, Enzo Ferrari – was always hustling, living a hand-to-mouth existence in the production of road cars to support a racing program. Regrettably, Chapman never found a Fiat, as Ferrari did toward the end of the 1960s. Lotus had Ford in its corner for racing and as a resource for powertrains, and later benefited from the corporate support of both GM and Toyota for relatively short periods. Lotus Cars, however, never enjoyed the corporate buy-in that would have allowed Chapman to race and let someone else build the cars. Regardless of what Consumer Reports or Kelley Blue Book might have thought (if they had ...) about those early Lotus cars, a great many are now regarded as classics. My first knowledge of a production Lotus was when Tom McCahill, the 'dean' of automotive journalists in the US, tested an early Elan for Mechanix Illustrated. While we're still not sure, some 50 years later, how McCahill's XXL frame fit into the tiny roadster, he had nothing but praise for the Elan's athletic chassis and now-timeless design. In today's Lotus portfolio, the Elise and Exige continue that light, athletic tradition, while the larger Evora seems to strike wide – literally and figuratively – of the "less is more" ideal. With the Toyota-powered Evora, more is more. But in an eco-sensitive era demanding more of the original Chapman mantra – add lightness – there's little reason that Lotus can't regain relevance if given the financial resources. Geely's acquisition of Volvo, the fruits of which appear regularly not only in the news but on the streets, suggests the Chinese investment will provide strategic vision (along with money) while allowing Lotus talent to do what it does best: Create an exciting product. And while at various periods in its history the product has been worthy, Lotus in the US has been ill-served by a flailing dealer network.

Lotus readying Evora crossover?!

If it seems to you like every sports car manufacturer is getting into the crossover game, that's because it's pretty much true. And now, we potentially have one more to add to the list, as Britain's Car magazine reports that Lotus – yes, Lotus – is proceeding with plans to build a crossover. Rather than build a new crossover from the ground up, however, Lotus is said to be developing a high-riding version of the existing Evora. It's tipped to keep its rear-drive configuration (rather than going with a proper all-wheel-drive system), with a raised ride height and more rugged styling. In that respect, it may emerge more like a Local Motors Rally Fighter than a Porsche Cayenne challenger. That may yet emerge as not such a bad thing as it may seem on the surface, but for those purists who'd balk at the notion of an off-road Lotus, the British automaker has other plans in store as well. The crossover would arrive on the heels of a refreshed version of the existing Evora, a potential convertible version of the same, and a hardcore, track-focused successor to the 2-Eleven is also said to be in the works. In the end, Lotus would only be the latest in a long string of established sports car makers to get into the crossover game. Porsche of course led the way with the Cayenne and followed up with the Macan, Maserati is set to follow suit, and last we heard, Lamborghini was still awaiting approval to build the Urus concept.