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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:

A restored Lotus Esprit adds lightness on Petrolicious

Spencer Canon believes the Lotus Esprit is a misunderstood sports car. The wedge-shaped exotics' reputation suggests they are incredibly temperamental, which means lots of expensive repairs. Canon sought to make sure his Lotus didn't suffer from such maladies, which was achieved thanks to a rebuild from a bare shell. The result of his hard work exudes 1980s style with some modern flair and even inspires Canon's career creating bicycles. The Lotus was a wreck when Canon bought it, and he spent months just stripping off the old paint. The car's condition prevented a complete restoration to original spec, so Canon decided to improve the coupe. He modified it in simple ways, such as replacing the power windows with simple pull straps. He also took inspiration from the color scheme on his company's bikes and painted the Lotus blue with a lighter stripe diagonally along the side. The completed sports car angers some purists for not being entirely authentic, but it's hard to argue with the results. Plus, Canon's happy, and nothing else really matters. Canon's Lotus has a rousing exhaust burble once he gets out of the city and out onto the open road. Take a ride with him in the latest video from Petrolicious to hear it yourself and to get a better understanding about the Esprit. Related Video:

Watch Lotus F1 team careen through a mall in Renault Twizy EVs

The Lotus Formula One Team is sticking with drivers Romain Grosjean and Pastor Maldonado next year, but it's dropping Renault as an engine supplier in favor of Mercedes power. The 2014 F1 season is barely over, though, and that mean's there still a little time left to put those marketing dollars to work, while still having a little fun, too. To that, Renault has put Grosjean and Maldonado behind the wheel of two Twizy electric cars and unleashed them on The Dubai Mall for an ad for the little buggies. The place is one of the world's largest shopping centers, and it also houses an aquarium, an ice skating rink and even a dinosaur. It's a big place, and unsurprisingly, the two F1 pilots drift the little buggies with ease around every part of the complex. Grosjean even gets some time on the ice. Check out the ad for the quirky EV in the video above. Related Gallery Paris 2010: Renault Twizy View 15 Photos News Source: Renault Middle East via YouTubeImage Credit: Related images copyright 2014 Drew Phillips / AOL Marketing/Advertising Motorsports Lotus Renault Coupe Electric Videos renault twizy Romain Grosjean lotus f1 team pastor maldonado