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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 Elise, Exige recalled over oil line fire risk

Lotus is recalling 451 examples of the Elise and Exige from the 2007 and 2008 model years. The cars in question, built from December 1, 2006 to October 31, 2007 could be affected by an oil cooler line that detaches from its fitting. If the line comes loose it could release oil onto the engine and possibly start a fire, or onto a tire and potentially cause a crash.
A bulletin from the National Highway Traffic Safety Administration indicates the recall is expected to begin on March 4. Notified owners can take their cars to their dealers for repairs to the lateral oil cooler hose and hose fittings. You'll find the full release from the NHTSA below with more information.

Genii capitalizing on Lotus F1 tech with new sports car?

Detractors will tell you that there's little to be applied from Formula One racing to the cars we drive, but what about the cars most of us could only dream of driving? We're talking about supercars from the likes of Ferrari and McLaren - two hugely successful F1 racing teams that have successfully made the transition into building exotic sports cars for the road. And soon there may be one more.
That would be the Lotus F1 Team, which is rumored to be working on a sports car project of its own. Now we know what you might be thinking: Lotus already makes sports cars. Indeed they do, only the F1 team has nothing more to do with the automaker behind the Exige and Evora than the name they share. Today the team (formerly known as Toleman, Benetton and Renault) is owned by Genii Capital, whose chairman Gerald Lopez recently confirmed the rumors to Auto Motor und Sport: "We are going to develop a carbon chassis for a sports car that can be built in large quantities.... But this has nothing to do with Formula 1."
With little to nothing in the way of details available, the circulating rumors had tied the venture to on-again, off-again Italian auto marque De Tomaso. But our source at ATS (which recently bought the rights to the De Tomaso name following Gian Mario Rossignolo's aborted attempt to revive it) firmly denied the prospect of any such collaboration. Spokesmen for the Lotus F1 Team would not divulge any information; neither would the press office for parent company Genii Capital, leaving the door wide open to speculation once again.