2009 Lotus Exige S 260 on 2040-cars

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Lotus Exige V6 Cup takes extreme to the extreme

What separates a road car from a race car? You're looking at it. It's the Lotus Exige V6 Cup, a model based on what is already one of the most hardcore performance machines on the road, albeit upgraded to an even harder-core spec. It's a good 130 pounds lighter than the Exige S (a vehicle which didn't have much flab to trim in the first place) and can hit 60 in under four seconds. With the notably exception of certain versions of the Porsche 911, there aren't a lot of six-cylinder cars that can claim that kind of performance.
In fact, the Exige V6 Cup is so close to race spec that it's already eligible for a number of racing series. Just bolt in the removable FIA-certified roll cage, maybe swap on some slick tires and you're good to go. Then you can drive it home again when you're done, just like in sports car racing's heyday. But don't take our word for it: the team over at XCar took the V6 Cup to the UK's Goodwood circuit to see how it compared to the Exige S it recently drove, and you can view the stirring results in the video below.

Radford Type 62-2 John Player Special takes the coach-built sports car even higher

Radford revealed its Type 62-2 a month ago, and today the coach-building company is releasing its first 62-2 variant. It’s simply called the JPS, short for John Player Special. YouÂ’d be able to guess that just by looking at the car, though, as itÂ’s completely done up in the traditional John Player Special black and gold livery. This JPS Type 62-2 isnÂ’t just a livery either. ItÂ’s the most extreme version of the car, even more so than the Gold Leaf version of the standard Radford that improves matters over the “Classic” model. Engine output sees a sharp turn upwards from 500 horsepower to 600 horsepower in the JPS. ItÂ’s still using the 3.5-liter supercharged V6 youÂ’d find in the Lotus Evora (an engine Lotus borrows from Toyota), but this one is heavily modified. Radford says it uses upgraded pistons, new connecting rods, camshafts and an upgraded supercharger. Plus, itÂ’s running a more aggressive engine calibration. Hauling it to a stop are upgraded brakes — Radford uses carbon ceramic rotors and AP calipers. New and larger carbon composite wheels (18-inch front and 19-inch rear) from Dymag are fitted and wrapped with Michelin Pilot Sport Cup 2 tires. Plenty of appearance and aero changes are made to separate the JPS from the other Type 62-2s. Radford says itÂ’s either lightly massaged or made big changes to every area of the bodywork. YouÂ’ll notice a giant new splitter up front, larger side air intakes to cool the more powerful engine and a more extreme diffuser in back to produce more downforce. WeÂ’ll also note that the JPS “livery” is not a sticker package; itÂ’s all painted on, requiring hours and hours of work by hand. Pricing for the JPS hasnÂ’t been revealed, but itÂ’s guaranteed to be expensive. This special model will be sliced out of the total production of Type 62-2s. Only 12 of the 62 total cars will be the John Player Special cars, so theyÂ’ll be incredibly rare — Radford says itÂ’s currently taking build slot applications, so you still have a shot at buying one. If you want to see the JPS in person, Radford says it will be on display at this yearÂ’s Goodwood Revival. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

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: