1978 Lotus Esprit 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 Esprit cancelled? [UPDATE]

Two years ago, we were gobsmacked when humble Lotus shocked the automotive world by wheeling out no fewer than five new models - admittedly in various stages of development - at the 2010 Paris Motor Show. The ambitious onslaught of new sheetmetal came at the behest of then-CEO Danny Bahar who aimed to broaden the British marque's appeal by dramatically expanding its portfolio. Bahar was later thrown out by new Malaysian owners DRB-Hicom in a management shakeup that seems to still be, well, shaking out. Bahar was deposed over accusations of financial wrongdoing and the controversial executive has fired back with a $10.6M lawsuit.
Against this chaotic background, a cornerstone of Lotus' revival plans hinged on the rebirth of its Esprit supercar (shown in 2010 concept form above). According to new reports, however, the Esprit has been cancelled, a victim of the company's uncertain finances and direction. Depending on which rumor you choose to believe, the two-seat coupe was slated to receive a house-built V8 and possibly turbocharging or hybrid power. That may all be moot now, however, as DRB-Hicom is reported to have scrapped Bahar's plans wholesale, a development that apparently includes killing off the mid-engined Esprit, too.
UPDATE: And this, friends, is why we have this story with a question mark and a Rumormill tag - Lotus is denying that the Esprit has been killed off.

Question of the Day: What's the greatest British car ever?

The British automotive industry has produced everything from high-production econo-commuters to staggeringly luxurious oligarch-wagons, along the way winning plenty of races and building plenty of beautiful machines. The original Mini led directly to the past half-century of transverse-engine, front-wheel-drive cars built everywhere, the MGB put the sporty little convertible into everyone's reach, and the Morris Oxford became the most beloved motor vehicle in India. So many to choose from, but we want you to pick one. What will it be? Related Video: