Lamborghini Reventón's Jet Gauges

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Seat Leon's LED Headlights

Toyota GT86 Has Appropriate Girth

Pagani Huayra's Soy Bean Mirrors

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Ferrari F12berlinetta's Aero Bridge

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Vauxhall Corsa's Glove Box Shark

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The McLaren P1 Has Logo Headlights

Covert Jeep Logo Inside Headlights

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Last week Alex enjoyed the bat-shit crazy practicality of the F ord Focus ST Estate . One of the design features we loved was that central exhaust, which got us wondering: which cars have the coolest design features that you never knew existed?It may not look quite as mental as the Veneno , but you could still write a whole book on the intricacies of the Reventón's design. Obviously there's the angular exterior that's responsible for poking many a child's eye out, but the really interesting stuff is inside. What you see above are the Reventón's, which were designed to look like those of a modern fighter jet. The illusion is unfortunately shattered once driving. It's far too quick.http://www.youtube.com/watch?v=_4d72LefGVk The brand newis the first car in its segment to feature. While that will become standard on all cars at some point in the future, it's interesting that the Leon's the first car in the VAG group to benefit. It's usually Audi that eats all the pies.There are many things we love about the Toyota GT86 , but the Japanese crew have taken great care in adding extra little nuances that show their. The logo incorporates a pair of opposing pistons, characteristic of the car's Boxer engine, fused by. That would certainly take home the 86's design crown if it weren't for the exhaust, which has a. That is the kind of obsessive detail we're after.We love Horacio Pagani for his super exotic vehicles and incredible levels of artistic dedication. The car's fundamental shape is inspired by an aeroplane wing. Everything is bespoke and the carbonfibre weave matches across panels. These are just a few of the Huayra's details. Our favourite, however, are the. Sounds like PR rubbish to us.Ferrari's successor to the 599 had a stupid name before the LaFerrari made it cool, but it's certainly a looker. Okay, so the rear end looks like lady bits and the F1 inspired fog light is a little tacky, but this car's party piece is the "Aero Bridge". You probably won't even spot the hole, but it's there,above the wheel and along the sides to keep the car stable.It's not all supercars and aero wizardry here. In 2006, Vauxhall's new Corsa featured a snappy surprise in the glove box. Early in the design stages a designer dared a colleague to incorporate aninto the interior. It seems that nobody questioned it and, much to their surprise, the shark now sits on every Corsa's glove box hinge!McLaren's hypercar was unveiled at this year's Geneva Motor Show. The P1 might be an, but we love the way the arty types incorporated McLaren's "Speed Marque" badge into the headlights' styling. This is a natural evolution from its little brother, which featured similarly shaped Daytime Running Lights. Oh, and the P1 also had the geekiest prototype camouflage , made up of the world's top racing circuits.By far the most subtle branding ever incorporated into a vehicle is Jeep's headlight logo that they put inside the Grand Cherokee's units. Unlike McLaren's fully shaped headlights, Jeep felt it sufficient to leave a littlefor particularly geeky owners to find.