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The Stig breaks into Lotus F1 HQ

As Top Gear's mysterious test driver, The Stig has driven just about everything on wheels - and more than a few things without. But an F1 car? That still remains a rarity, even on Top Gear.
That all changes in this latest promo clip, though. The video shows what happened when his Royal Stigness arrived at the headquarters of the Lotus F1 team in Enstone, England, where he somehow managed to scan his way in past security and got his hands on a Lotus-Renault E21, the V8-powered single-seater that Kimi Raikkonen and Romain Grosjean drove in the 2013 Formula One World Championship - and which the Stig will apparently be driving on stage during the upcoming Top Gear Festival in Durban. If you're not heading to South Africa this month, though (or even if you are), you can check out the footage in the video below.

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 Evija EV supercar is charging toward series production

It's almost time for Lotus to begin production of real Evijas bound for customers, but first, it must go through its final round of testing. To accomplish this task, Lotus had to prep its brand-new production facility to build the final prototypes. New photos and video give a glimpse of what the Lotus assembly hall looks like.  The Evija, which means "the first in existence," is an all-electric supercar that Lotus hopes will be the most powerful production road car ever made. The supercar uses electric motors for four-wheel drive with torque vectoring and has a battery pack rated at 70kWh. Lotus claims it has 1,973 horsepower and 1,254 lb-ft of torque, can go zero to 60 mph in less than three seconds, can do zero to 186 mph in less than nine seconds, and has a top speed of 200 mph. All of that, with a weight of 3,704 pounds.  Possibly more impressive are the claimed battery stats. The Evija, which is the first Lotus developed with new majority shareholder Geely, can supposedly fully charge in less than 10 minutes and has a range of 250 miles. With a 350-kW charger, it'll fill up in 18 minutes. Lotus says the Evija has been an extremely collaborative effort, as 20 specialist contractors and 50 experts have been on site for the past six months. They've been hard at work in the new facility, which is located next to the 2.2-mile Hethel circuit in Hethel, in Norfolk, U.K. Check out the new state-of-the-art light tunnel, the vehicle lifts, the gantry crane, and more above and below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.