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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:

Race recap: 2015 Singapore Grand Prix full of odd sideshows

What greeted the Formula One teams in Singapore? Confusion. The haze was so thick that observers wondered if the race would be held at all. Then practices began, and Mercedes-AMG Petronas driver Nico Rosberg took the first one, but the team fell away after that. Mercedes said it couldn't get the tires turned on, but no one believed the Silver Arrows was in genuine trouble. Then qualifying set the confusion in stone. Ferrari driver Sebastian Vettel laid down the best time in Q3, taking the team's first pole position since Germany in 2012. Daniel Ricciardo got his Infiniti Red Bull Racing into second, about one tenth behind Vettel. (That may make the team feel better after Ricciardo publicly asked for a better engine than the current Renault unit, and team advisor Helmut Marko said the outfit will quit F1 at the end of this year if it can't get a stronger powerplant for 2016.) Kimi Raikkonen put the second Ferrari in third, Daniil Kvyat put the second Red Bull in fourth. And only then came the Meredes'. Lewis Hamilton's best got him fifth, the Brit saying, "We don't really know what we have got wrong. For some reason the tires are not working on the car. We do the warm-up the same as everyone else and then you see someone one second up the road." For added emphasis on the reversal of fortune, his time was 1.6 seconds behind Vettel's. Teammate Rosberg is next to him in sixth, a further half a second back. Williams is still a hurting a bit on slow tracks, so Valtteri Bottas could only get into seventh ahead of Max Verstappen in the Toro Rosso and teammate Felipe Massa in ninth. When the red lights went out, the 2015 Singapore Grand Prix would get both less interesting and more interesting all the way to the final lap. The men up front got good getaways, and the order into Turn 1 was Vettel, Ricciardo, and Raikkonen. The race finished with those three in that order, never having conceded position. Vettel's Ferrari enjoyed the track so much that he laid a second per lap into Ricciardo for the first five, then relaxed. He'd let the gap come down later in the race a couple of times, but any time he wanted to see what his mirrors looked like without anyone in them he'd take off again. Rosberg took fourth position after holding down sixth for the first stint. It looked like he'd have an even worse day - for a Mercedes driver - when he had problems getting his car started and onto the grid before the race.

Lotus Evora Sport 410 will come to North America this year

Just a year after debuting the 400-horsepower Evora 400, Lotus now reveals the Evora Sport 410, which sharpens the coupe even more. As the name suggests, power creeps up to 410 hp, but the more impressive change is the 154-pound drop in weight. Like the 400, the new model is even on the way to the US. "A specific North American version of the Evora Sport 410 will be announced later in 2016 along with the price," Alastair Florance, Lotus Group PR Manager, told Autoblog. We hope it's as light here as in the rest of the world. The Evora Sport 410's extra power and fewer pounds translate to improved performance. The run to 60 miles per hour now takes 3.9 seconds, versus 4.1 seconds for the Evora 400. The top speed remains the same at 186 mph. The latest model is also three seconds per lap faster around Lotus' Hethel test track compared to the 400. Lots of new carbon fiber parts are the key to the significant weight loss, which takes the coupe down to 2,921 pounds. The front splitter, roof, tailgate, rear diffuser, sport seats, and front access panel are now made from the lightweight material. Inside, there are single-piece door panels, which no longer have armrests or stowage pockets. Lotus plans to build 150 Evora Sport 410s a year, but it's not clear whether that figure includes the North American specific model. Prices in the UK start at the equivalent 79,900 pounds ($112,000 at current exchange rates). We don't yet know US numbers, but the Evora 400 sells for $89,900 here. You can assume a higher cost for this model's greater performance. Lightening strikes again: The Lotus Evora Sport 410 • 0-60 mph in 3.9 secs and a top speed of 186 mph • 70 kg slashed from the weight of the Evora 400 • Comprehensive carbon fibre package as standard • Increased power, reduced mass, sharper handling • Total production limited to one-hundred and fifty vehicles per year In a move that should surprise no one, Lotus has raised the bar once again by lightening the Evora in order to develop the sensational Evora Sport 410. Following on from the recently announced Elise Cup 250, and the Exige Sport 350, Lotus' famous Lightweight Laboratory has been hard at work cutting the weight of the Evora 400 by a massive 70kg. With a host of high-performance carbon fibre components as standard, and sharing the 410 hp supercharged engine with the track-bred 3-Eleven, the Lotus Evora Sport 410 clocks 0-60 in 3.9 seconds on its way to a top speed of 186mph.