1973 Lotus Europa Twin Cam 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:

Jay Leno goes old school with 1966 Lotus Elan 26R

On the latest episode of Jay Leno's Garage the guest's are both from inside the garage: the man they call Professor Jim Hall, Leno's master fabricator, and the 1966 Lotus 26R that he spent 18 months building. The Elan 26R was the racing version of the Elan that Lotus founder Colin Chapman began building after watching privateer teams prep their roadgoing Elans for competition duty all over Europe. Built by the factory from 1964-1966, drivers like Jim Clark and Jackie Stewart won silverware in the roadster called "the giant killer."
Hall, a veteran Lotus wrench, started with the 1966 Elan street car and turned it into a 26R that's arguably better than the factory original. Except for the engine block and head, original 26R body and Elan chassis, just about everything is custom built, highly modified or special order, from the fabricated oil pan, brake lines, safety wiring and oval exhaust tubing to the six-speed sequential transmission.
The episode is an unusually-long 21 minutes because, as an in-house build, Leno can go through the process of putting the whole roadster together. When he takes it for a drive and keeps going on about how it sings, you can hear it, too. It's worth the time to check out Mr. Hall's Opus in the video below.

Lotus signs joint venture agreement with China's Goldstar

Lotus and China's Goldstar Heavy Industrial Company are forming a joint venture that will bring the historic British sports-car maker into the country. "The collaboration seeks to accelerate the development of Lotus cars in the premium sports segment in China," according to the announcement. The JV will include research projects on efficient and advanced technology, and ultimately lead to sales of cars there, Lotus said. China's auto market is no longer experiencing the double-digit growth of the past, but it still continues to expand. Meanwhile, Lotus saw sales jump 55 percent in the last fiscal year and it opened 36 new dealers, according to CEO Jean-Marc Gales. The joint venture announcement also hints at the possibility of Chinese-made models, but it shouldn't dilute the brand. Lotus is clear that core vehicles like the Evora, Exige and Elise would remain exclusively in production at the headquarters in Hethel, England. Just a couple years ago, Lotus appeared to be on its deathbed after losing a quarter of its workforce, but since that setback the company has started to crawl back. PROTON, LOTUS GROUP AND GOLDSTAR SIGNED JV AGREEMENT KUALA LUMPUR – PROTON Holdings Berhad ("PROTON") the ultimate holding company of Lotus Group, announced that it has signed a Joint Venture ("JV") Agreement with Lotus Group International Limited, United Kingdom ("Lotus Group") and Goldstar Heavy Industrial Co. Ltd. ("Goldstar") for a possible business expansion of Lotus cars in the People's Republic of China. The collaboration seeks to accelerate the development of Lotus cars in the premium sports segment in China, leveraging on the incentives offered by the Fujian Provincial Government. Both PROTON and Lotus Group are subsidiaries of DRB-HICOM Berhad. Signing on behalf of PROTON was the Honourable Tun Dr Mahathir Mohamad, Chairman of PROTON and former Prime Minister of Malaysia and witnessed by Dato' Abdul Harith Abdullah, Chief Executive Officer of PROTON. Signing on behalf of Lotus Group International Limited, United Kingdom was Jean-Marc Gales, Chief Executive Officer and witnessed by Mr Rohime Shafie, Director of Lotus Group and Chief Financial Officer of PROTON; and signing on behalf of Goldstar was Mr Zheng Qianghui, Chairman of Goldstar and witnessed by Mr Zhai Wenliang, President of Goldstar.