1980 - Lotus Esprit S2 - One Of A Kind - Beautiful & Unmolested - 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:

This might be a Lotus SUV test mule

These photos could be our first look at the Lotus SUV in test mule form. The body on the chassis is clearly that of a Lynk and Co. 01 SUV, but the underpinnings are something different entirely. Perhaps the most telling bit of all is the location in which our spy shooter caught the vehicle. We're told that this was shot dangerously close to Lotus' headquarters in Hethel, England. Using a Lynk and Co. body to test the Lotus SUV makes sense when you take into account who owns both companies. Geely happens to own Lotus, Lynk and Co. and Volvo, so they're all under the same roof at this point. These spy photos appear to be hiding a chassis that doesn't exactly fit correctly under the body, though. The front fenders are far wider than they are on the 01, and the rear fenders also look like they've been messed with to fit the much larger rubber. It has a wider, more aggressive stance than the Lynk and Co. SUV, lending more evidence to this being a Lotus SUV test mule. We'd expect a Lotus SUV to handle as well as anything in the class, so all these things do make sense if that's what it is. As for what could be powering the British SUV, that's another story. This tester has yellow caution tape covering where the gas cap is on the 01 SUV, no visible exhaust and a big, yellow high voltage sticker on the windshield. All of that tells us it's most likely electrified in some form. We didn't have intel that the Lotus SUV would be electric previously, but there's every chance they could go down that road. The Lotus 130 hypercar is going to be all-electric. And Volvo sells plug-in hybrids now, so the tech could be borrowed from there, too. Of course, Volvo doesn't have the same priorities as Lotus does with weight reduction and handling, so don't consider anything a done deal quite yet. We can't actually confirm that the vehicle in question is a Lotus underneath, but hopefully more photos and information make their way to us soon. There's still a long way to go in the development process if Lotus is only testing on mules now, so look for plenty more to come on this vehicle.

NHTSA investigating Lotus Elise for oil leaks

The National Highway Traffic Safety Administration has received 17 complaints about an errant oil line in the Lotus Elise, and thus, has opened an investigation. The issue concerns the line on the front right cooler, which, having got loose, sprays oil either on the wheel or inside the engine bay.
This investigation pertains to around 4,400 of the little track-day wonders sold in the 2005 and 2006 model years. There have been no injuries, but one car did leave the road and catch on fire. A NHTSA investigation doesn't mean a full recall has been issued, just that your friends in the fed are looking into the matter.