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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 team out of Le Mans, full driver list published

We can scratch off one more car from the list for the 2014 24 Hours of Le Mans. The Lotus T129 LMP1 car has been dropped from the entry list of the 82nd running of the historic race, with organizers citing "a lack of preparation" as the reason. On a more positive note, the list of 168 drivers in 56 vehicles has been officially published for the June 14 race.
Like the Lotus team currently in Formula One, the Lotus T129 uses the iconic British brand's name and colors but is actually built by a separate company. It previously ran a Lola chassis in the LMP2-class (pictured above). The Le Mans organizers claim the car will likely be on display during the 24-hour race, but it won't make it's competition debut until the World Endurance Championship round at the Circuit of the Americas in September. The T129 is being replaced by an Oreca 03 chassis with Nissan power in the LMP2 class, entered by Millennium Racing.
The Lotus' retirement came as the teams had to send in the names of the three drivers nominated to race each car. This year there are racers from 26 countries with the most coming from France (39), Britain (29), the US (17) and Italy (15). The latest tally of entries breaks down to 9 LMP1s, 19 LMP2s, 9 LM GTE Pros, 18 LM GTE Ams and the Nissan ZEOD RC as the experimental Garage 56 entry.

Lotus bids farewell to the Elise and the Exige with Final Edition models

Lotus will put the Elise, the Exige, and the Evora out to pasture later in 2021 to make room for a new model that internally is being called Type 131. Before it embarks on this major lineup overhaul, the firm will send off the Elise and the Exige — two of its best-known and longest-running models — with a limited Final Edition. Fittingly, the Final Edition models represent the ultimate evolution of the Elise and the Exige, nameplates released 25 and 21 years ago, respectively. Lotus added power and, somewhat surprisingly, equipment without straying from the famous "light is right" philosophy that shaped both cars. Collectors have two variants of the Elise (Sport 240 and Cup 250) and three of the Exige (Sport 390, Sport 420, and Cup 430) to choose from. Stepping inside either Final Edition version of the Elise reveals a thin-film transistor (TFT) instrument cluster that can be configured with regular gauges or a racecar-like display, depending on whether motorists plan to hit the road or the track. Lotus also redesigned the steering wheel to give taller drivers more space. New upholstery and stitching patterns round out the major updates, and every Final Edition wears a specific metal plaque. Outside, the changes include new additions to the palette, including Azure Blue, which was one of the launch colors when the Elise was presented to the press in 1996. Racing Green, the hue worn by the model when it made its global debut at the 1995 edition of the Frankfurt auto show, makes a comeback as well. If 2,032 pounds is too heavy, Lotus offers optional parts (like carbon fiber panels) that shed 53 pounds. Power for the Elise still comes from a supercharged, 1.8-liter four-cylinder engine mounted directly behind the passenger compartment. It delivers 240 horsepower (23 more than stock) and 180 pound-feet of torque, figures that give the roadster a 4.1-second zero-to-60-mph time. Selecting the Cup model brings a full body kit that generates 145 pounds of downforce at 100 mph and 341 pounds at the Elise's 154-mph top speed. Like the Elise, the Exige range receives Final Edition-specific paint colors, decals, and other exterior accents. Inside, it's a similar story: Lotus added a TFT screen and a new steering wheel, among other updated parts. Instead of a four-cylinder, the Exige packs a meaner punch thanks to a supercharged, 3.5-liter V6 tuned to put 397 horsepower (a 47-horse increase) and 310 pound-feet of torque under the driver's right foot.