1997 Lotus Super Seven on 2040-cars

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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.

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 recalling certain 2011 Evora S models for possible oil leak, fire

Last year about 80 examples of the 2011 Lotus Evora S were recalled over an issue with the oil feed pipe. The same number of 2011 Evora S', but with different manufacture dates, are back in the recall box again for a very similar issue; this time it's the engine oil cooler hose that could rupture and spray oil either onto the rear wheels or a hot engine part. Neither of those cases is good, and the latter could potentially lead to a fire.
Lotus is working on a solution, so a recall date hasn't been announced. The bulletin below from the National Highway Traffic Safety Administration has more information.