2010 Lotus Elise Supercharged 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:

Recap: 2013 Spanish Grand Prix is Catalan for 'Lottery' and 'More pit stops'

This year's Formula One season might qualify as being just as crazy as last year's, only it's a different kind of crazy. Instead of a new winner every Sunday, how the winner actually manages to take the victory is the mystery, and just when we thought the season might have settled into a groove regarding team performance, here comes the Spanish Grand Prix to remind us that we don't know anything until the race has been run.
There were many similarities to past weekends to being this one: Mercedes-AMG Petronas showed awesome one-lap pace, Fernando Alonso did well enough in qualifying to get fifth on the grid but talked up the race pace of the Ferrari, Kimi Räikkönen was the equivalent of a racing photobomber, never saying much but always showing up in the picture, Felipe Massa wasn't really big on the tires and McLaren might want to consider starting a blues band they spend so much time singing them.
Then the lights went green and things went nuts...

Lotus Elise Cup 260 celebrates the automaker's 70th anniversary

Lotus rides the special edition train nearly as often as Jeep. When you only sell a few models, you need to make the most of what you have. Today, Lotus announced a new very-limited-edition variant, the Elise Cup 260. Just 30 examples will be built and, based on pricing, it doesn't look like it will be coming to America. Hey, the cars are likely all spoken for already. The Elise Cup 260 builds on the Cup 250 and takes influence from the Lotus Evora GT430 and Exige Cup 380. Lotus says this car is even lighter than the already pint-sized Cup 250. Downforce is the name of the game with the Cup 260. The car makes 397 pounds of downforce at 151 mph (44 percent better than the Cup 250), helping the car maneuver around a circuit with copious amounts of traction. The key components here are louvered front fenders, a carbon fiber front splitter and a carbon fiber rear wing that wouldn't look out of place on an FIA-spec GT car. All of the lightweight performance options from the Cup 250 are standard equipment on the Cup 260. The sill covers, roll hoop cover, front access panel and engine cover are all made of carbon fiber. It also uses a polycarbonate backlight glass to save more weight. The Cup 260 has two-piece rotors and two-way adjustable Nitron dampers at all four corners. Strangely, the Elise uses AP Racing calipers up front and a set of Brembo clamps out back. The Elise Cup 260 is powered by a supercharged 1.8-liter inline four making 250 horsepower and 188 pound feet of torque. In the right hands, the Lotus will hit 60 mph in just 3.8 seconds. Top speed is listed as 151 mph. Lotus' Hethel track is the true benchmark of any car to wear the green and yellow badge. On it, the Cup 260 is 2.5 seconds faster than the Cup 250. The exterior has been done up in gold and features a couple of wreaths meant to commemorate the 70th anniversary of Lotus' first car. The car comes standard with Alcantara upholstery, but if it were our money we'd spring for either the yellow or red Tartan trim pack. As befitting any Lotus, weight savings was first and foremost. Things like air conditioning, carpeting and sound deadening material are all optional extras. Pricing has only been announced for Europe, but the UK base price converts to roughly $77,800. Not cheap, but few if any cars provide the pure, unadulterated driving experience of a Lotus. Related Video: