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Lotus Evora GX to race in U.S. Grand-Am series

The Lotus Evora has taken many forms as a race car over the past few years, starting in 2009 with the Type 124 Endurance Racer built for the FIA GT. Since then, Lotus has developed a GT4 Cup version designed for a one-make series, the Evora GTE that currently competes in the GT class of the ALMS and the recently introduced Evora GTC.
Now, Lotus has released the Evora GX, a variation of the GTC tweaked to specifically meet the requirements of Grand-Am's new GX class that will launch at the start of the 2013 race season. While the two cars are very similar, using the same lightweight carbon fiber and plexiglass bodywork, the GX version gets a thicker U.S.-spec roll cage, a revised front splitter and bumper, a standard Grand-Am rear wing, yellow headlights and a new fuel filler system. ABS and traction control have also been removed per Grand-Am regulations.
Pricing for the Evora GX is listed at $335,000 with each one built to order, and one customer has already taken the plunge. McMahon Raceworks has placed an order and should have the car on the starting grid at the first race next year.

The Caterham Seven Sprint is a perfect retro-style British roadster

A Caterham Seven oozes retro style. Modern engineering may mean the car no longer shares any parts with its original Lotus counterpart, but one look at the little roadster and it's easy to see the car's heritage. Caterham loves pumping out variants of the Seven, and the 2016 Goodwood Revival seemed like the perfect place to announce the latest version, the throwback Caterham Seven Sprint. Caterham calls the Seven Sprint a design "that was seemingly planned in the mid-1960s but never launched." It's apt then that the company is using it to kick off its "60 Years of the Seven" celebrations. The Seven Sprint is based off the European-only 160 model, meaning it's powered by an 80-hp turbocharged three-cylinder Suzuki engine. While the bonkers Seven 620 R may be the biggest and baddest Caterham available, the bare bones Seven 160 just feels more appropriate here. There are a number of retro styling touches throughout the car. The limited edition Seven Sprint comes wrapped in one of six colors originally offered by Lotus in 1966 and 1967. The Chassis is powder-coated grey, just like the Series 2 Lotus Seven. The cream-colored wheels feature polished hubcaps, while the interior features a wood-trimmed wheel and the interior is trimmed in a wonderful shade of red. The body has been slightly reworked to look more like the original Lotus designed car. Mechanically, not much has changed. Power from the Suzuki three is fed through a five-speed manual. Some of the suspension bits are similar to Colin Chapman's original design, but that's true of the standard 160. The car should be just as much of a riot as any other Caterham, just packed to the gills with style. The Seven Sprint is available only as a fully-complete factory car. It's unknown if any of the 60 produced will make it to the US. Prices in the UK start at GBP27,995, or about $37,000. Related Video: Featured Gallery Caterham Sprint Image Credit: Caterham Cars Design/Style Lotus Automakers Convertible caterham seven

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: