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Driving upside down through a tunnel is only a matter of down force combined with g-forces created during the loop, verse gravity. The total pressure of down force when combined with the g-forces created by effectively circling the perimeter of the tunnel must exceed the total weight of the vehicle and driver. If this level of pressure can be reached, a vehicle can in theory drive upside down through a tunnel. The latest Mercedes-Benz SLS AMG video suggests that "practical testing" of their sports car allows it to drive upside down. Mercedes-Benz isn't the only one to claim this, the Gumpert Apollo previously stated that it's vehicle could also drive upside down through a tunnel. However, Gumpert failed to find a driver before Mercedes-Benz..JPG)
More SLS AMG footage:
The question arises, is this real or fake? Certainly the CGI department with a Mercedes-Benz budget could afford a very realistic rendering of the stunt. Much better than Ford's skateboarding Mustang! Physics suggests that it could actually be performed and the car would stick to the wall if appropriate conditions are met that exceed the vehicles total weight. So, that leaves us questioning for the truth. Did the Mercedes-Benz SLS AMG actually travel upside down through a tunnel? Or, is this just a couple frames of high priced CGI? Comment your thoughts below after watching the Mercedes-Benz SLS AMG driving upside down through a tunnel.
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Video content: Mercedes-Benz SLS AMG drives upside down through tunnel
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Comments
aint NO way!!!
so? top gear did it with a crappy cheap car, you dont need a supercar to do it
It is totally possible. It can be tested with a few simple physics equations. You need to know the the weight of the car and the geometry of the tunnel to find the necessary speed need to complete the loop. Jeremy Clarkson (Top Gear) did it with a Renault Twingo (a smaller car, in a smaller tunnel, at a slower speed). Since this site is not allowing my to post links, go to YouYube and search for "Tunnel Spinning Renault Twingo Top Gear" to see the video. Cheers!
The "Twingo" was a frontal loop, not a lateral one.
This is great CGI at work. The car would need to make thousands of pounds of downforce in order to do it successfully. And it does NOT even come close.
Very cool though.
Entirely possible. This is the equivalent of a barrel roll, which if performed at the right speeds, is anywhere from a 1-2G maneuver, and would keep the car stuck to the tunnel all the way around, regardless of aerodynamics. Steel roller coasters do this all the time with zero aerodynamics.
Now, just because it's possible doesn't mean they really did it. But it is possible.
if a matchbox can a mercedes can!
it is a fake. if you look at the angle of the shot of the car inverted the transition from the roof back to the wall is such a step angle the car would have lost consistant tire contact causing insufficet down force to complete the manuver with out crashing.
you really got to think about this! when the car comes up on the point of going up the wall he jerks the wheel with no tire sqweel no sliding at those speeds. sorry not possible. and you gatta think that car has got to be going pritty fast to even try to keep those tiers planted!
He changed lanes at what i would guess is around 80mph, why would his big sticky tires lose grip? Clearly a lot more thought has gone into this commercial than you are capable of. This is definitely possible, the tunnel appears to be heavily modified for this experiment (concrete ramps for launch and landing, along with light removal and probably more concrete work at the top of the tunnel for smooth transitions.), and a single F1 race is a much higher risk for merc and shumi, also vastly more complicated. They could do it, it looks like they did do it, never heard anything official though. .02$
Of course it is possible! I am shocked about all these ignorant people here who say no!. This is grade 9 physics! The care weighs 1.8 t tops incl. driver and safety equipment! The centrifugal force needed to press the car to the ceiling of the tunnel with twice its weight-force is about 35 kN. For a tunnel with a 10 m diameter, this means the velocity vector orthogonal to the direction of the tunnel would have to be about 35 km/h. If the car is travelling at 110 km/h, it would have to steer towards the tunnel wall at an angle of approx. 30 degrees, and the roll is physically a piece of cake. However, I don't think they did it for real, because it is much easier, cheaper and less risky to use cgi. But nevertheless, it is possible.
And too all those muggles who say it wouldn't be possible: get off my internet and go back to community college!
Thank you for posting this article in this forum I will bookmark this page and tell my friends about this ...
cable tunnels
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