1988 Lotus Esprit 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:

2022 Lotus Emira revealed with two engine options, Evija-inspired looks

The final internal-combustion-powered Lotus has been revealed: the 2022 Lotus Emira. The styling looks like a blend of the outgoing Evora and the all-new Evija electric car. It also features two choices of engine, one of which comes from AMG. The Emira's nose has the closest resemblance to the electric car, particularly in the headlights and the vent openings on either side of the hood. But the whole car has a softer, more rounded shape like the EV rather than the old Evora. It has very large intakes on each side, and a slim, wrap-around taillight at the back. The body fits over a typical Lotus bonded-aluminum chassis, and the company says the lightest version of the car will weigh around 3,100 pounds. Two kinds of suspension are available, the standard Tour setup and an optional and stiffer Sports version. Also noteworthy is the inclusion of hydraulic power steering, rather than electric. Powering that chassis is your choice of engines. It will launch initially with the same supercharged 3.5-liter V6 from the Evora. Next summer, it will be offered with a turbocharged 2.0-liter four-cylinder from AMG. Lotus says three transmissions will be available: manual, automatic and dual-clutch transmissions. It didn't say which pairings of engine and transmission would be available, but we expect the V6 to get the manual and automatic options, while the four-cylinder gets the dual-clutch transmission (just as it does when in Mercedes A-Class-related cars). The company also says power will range from 360 to 400 horsepower. This will get the car from 0 to 62 mph in under 4.5 seconds. The interior is fairly minimalist, but definitely more advanced than recent Lotus offerings. Most surfaces are covered in fabric, leather or Alcantara. It has two screens for instruments and infotainment. The former has a 12.3-inch screen, and the latter has a 10.25-inch touchscreen. Features include Apple CarPlay and Android Auto. There's only seating for two, and cargo space is split between a 5.3-cubic-foot trunk and a 7.3-cubic-foot area behind the seats. The Emira was revealed this week at the Goodwood Festival of Speed. Pricing for the U.S. has not been announced, but it will cost under 72,000 Euros in Europe. That comes to around $85,000 in the United States. We should know more about specifications and pricing closer to when it goes on sale sometime this year.

Lotus Type 132 gets another teaser in before debut

Lotus has teased the Type 132 for what could be the final time before the battery-electric crossover debuts next Tuesday, March 29. Swinging for the fences with a special guest star that would help forestall the inevitable discord about Lotus making what will be a weighty crossover, Lotus enlisted Clive Chapman, son of company founder and legend Colin. Clive mentions Colin keeping a practical family car in addition to some variety of orthodox Lotus sports car, and says he thinks his father would have loved the chance to design something like the Type 132. Perhaps it's true. Yet, although Clive mentions practicality and towing and farming and a popular explosion of four-wheel-drive vehicles in the 1970s, Colin is never shown with one in the video. The best Colin does for practical is a Lotus Eclat, which everyone, even today, would likely accept as Lotus' version of a family car.  The video does offer one unquestionably honest bit, which is a silhouette of the Type 132. It's going to be sharp and racy, no doubt about that, and we like the look of it. Separate to the video, additional honest views of the Type 132 have been uncovered in another set of patent images. The Australian patent office let slip renderings of the CUV's exterior early this month, Spanish outlet Cochespias landed on images of the interior placed with a different patent office. They show some expected EV features like a flat floor and a two-level center tunnel with a floating console up top. They show us some expected luxury features like shapely and powered front sport seats, powered rear seats, and a full-width climate control vent design in front. They show some unexpected inclusions like a what appears to be a giant glove box door, and rear seat surfaces that could be a toss-up for comfort — but of the shut lines are accurate, those seats fold down in ways to make the most of the load bay. There's a large infotainment screen that allegedly lies flat on the instrument panel when not in use. And note what might be two cupholders on the center console, one of which might be tiny.  The slim extensions on the exterior views from earlier this month weren't just conceptual. The door panel in the interior renderings shows a blank square ahead of a speaker that should be a screen displaying the feed from the side camera. If anything, the only thing the drawings leave out is how long the vehicle appears to be, based on spy shots of the Type 132 testing in China last month.