1968 Lotus Elan S4 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 Advanced Performance offers hints about special projects

Four months ago, Lotus teased the creation of an Advanced Performance division. The legendary sports car maker divulged that the department would build "ultra-exclusive and unique vehicles" outside of the firm's regular-production lineup, developing Lotus race cars, manage Lotus motorsports programs, work on customer commissions and create customer experiences from Hethel production tours and track days to global driving academies and "money can't buy" opportunities. In further comments to Autocar and Auto Express, the head of Lotus Advanced Performance (LAP), Simon Lane, gave clues about what's coming. Lane suggested a number of creations, but the part we're most excited about is "while wider Lotus Group moves towards full-on electrification, LAP is 'reserving the right to still play with combustion engines.'" These ICE powerplants could be slated for coming restomod projects based on plans and technical drawings for Lotus products in the 1960s and 1970s that were never produced. Lane said his 15-person team is "well advanced" on work on what he calls "scratch build" vehicles that will hearken to vintage wares but be "easier to drive and maybe [have] a better power-to-weight ratio and better brakes." We love our electric cars here at Autoblog, but the idea of lightweight revivals recalling Lotus' best years with classic lines, small-displacement engines and maybe even manual transmissions would be glorious. These won't be continuation cars, but all-new products with production runs said to be smaller than anyone would expect.    It's possible we could see something this year, 2022 being the 50th anniversary of Emerson Fittipaldi and Lotus winning the 1972 Formula 1 Driver's and Constructor's Championships in the Lotus-Ford 72D. That might explain the teaser image from February, if not the colors of the car in the teaser. Know what other momentous Lotus moment occurred in 1972? The Esprit concept debuted at the Turin Motor Show. Lane, who comes from service in Aston Martin's Q division, calls LAP "the most all-encompassing special operations department" among automakers. That means there will be work done on the electric side, too, potential services being electric drivetrain conversions of traditional Lotus cars, and creating new bodywork for the new range of battery-electric cars.

The new Lotus Evora GT430 Sport is quicker with an automatic

Few automakers exploit platform variants as much as lotus. The company has four models, one of which is essentially a hardtop version of another. The Lotus Evora 400 sits atop the range, and since its debut last year we've seen the Evora 410, Evora 410 GP Edition and the Evora GT430. Today, the British automaker announced the Evora GT430 Sport, essentially a less hardcore but nearly as capable version of the GT430. The two biggest differences are the non-limited availability and the available six-speed automatic transmission. All 60 examples of the GT430 were only available with a manual. Both cars use the same 3.5-liter V6 topped with an Edelbrock supercharger that's good for 430 horsepower. Manual models make 325 lb-ft of torque, while automatic-equipped cars make 332 lb-ft. Despite a 24-pound penalty, the GT430 Sport automatic hits 60 mph in 3.6 seconds, a tenth quicker than the manual. While gearing in the automatic limits top speed to 170 mph, manual models can reach 196 mph. That makes this the fastest road-going Lotus ever. No matter which one you choose, the GT430 comes with Ohlins TTX two-way adjustable dampers, slotted and ventilated brake discs with AP Racing four-piston calipers, a Torsen-type limited slip differential and an adjustable traction control system. The front and rear bumpers, front access panel, roof panel, rear quarter panels and one-piece louvered tailgate and spoiler are all made of carbon fiber. The non-Sport GT430 adds a carbon fiber front splitter, rear wing, louvered wheel arches and a wider set of wheels and tires. The carbon fiber theme continues inside. The seats, door sills and parts of the instrument cluster are all made of the lightweight material. Most of the rest of the interior is trimmed in leather and black Alcantara. At $136,000, the new GT430 Sport undercuts the limited-run model by about $11,000. There's no word on if the car will make it here to the U.S. Hopefully Lotus' new parent company will keep the ball rolling. Related Video: