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James May's Tesla Model S has failed!

Khufu says...

have you seen the new Porsche 911? it has NO HOOD!

cloudballoon said:

The design flaw is not that the 12V conventional battery can die or lack of charger port. It's that you can't open the hood to replace it (or other parts of the engine) in a Tesla (or the Model S at least) when the 12V battery dies. Conventional car models use a MECHANICAL means to do that.

Ferrari F40 + Snow Chains + Snowy Mountain = Win!

blutruth says...

The care is owned and driven by Takeshi Kimura, a wealthy property developer who also owns a Ferrari F50, Enzo, 458 Speciale, McLaren P1, Porsche 911 GT3RS, and a Lamborghini Huracan Super Trofeo (at least according to the internet), so I'm fairly confident it's not a kit car. The F40 suspension is height-adjustable, so they probably set it as high as possible for the snow sequences.

Payback said:

As Chaosengine said, yes, the F40 does have a wing.

Part of my belief comes from the lights, but mostly it's the ride height. There's enough room under this car for a real F40 to drive under it...

Something yells "FIERO!!" and not "FERRARI!!"

nock (Member Profile)

nock (Member Profile)

So, some smartass went and reinvented the wheel ...

jubuttib says...

I think that at best this would be applicable only to the very lightest of electric vehicles (something in the "motorcycle" weight class, even half a ton is probably too heavy), and I have my doubts about even those, even when completely disregarding the sideways forces.

With a system like this you do not want more than a few cm (about an inch, at a guess) of suspension travel from when the car is lifted in air to the car at rest (= 1G vertical load), just from the weight of the car compressing the springs. If you have more the springs (which the loops naturally are) have to compress a lot with each revolution, which strains them, heats them, isn't good for rolling resistance, etc.

If we assume a 1000 kg car with a 50/50 weight distribution, to get about 2 cm of suspension travel the spring stiffness would be about comparable to a high level GT racing car. Comparing to high level sports cars, the street going Porsche 911 GT3 RS car, which is regarded as a pretty stiff, racy and track oriented vehicle has something in the region of three times that much travel, a normal commuter car can have way over 10 cm due to soft, comfort oriented springs.

So you can't spring a proper car with just these because it'd require it to be too stiff (also I can foresee shock absorption issues). Another problem is the 360 degree springy nature of it. You really don't want car tyres to move much aside from up and down. These have the problem that when you brake, the forces will try to push the axle forwards in relation to the wheel (i.e. the wheel moves backwards while braking), and the reverse when accelerating. You'd be (possibly) drastically changing the wheelbase of the car during acceleration and braking, which could have catastrophic results for handling in extreme situations. Many if not most cars these days are capable of braking at over 1 G, as long as they have decent tyres, so the front-back movement could be bigger than the up-down movement.

So yeah, doesn't really sound like a workable solution as the ONLY spring system on a car. Having some springiness in the tyres (either in the wheel itself of just having larger profile tyres, like we used to back in the day) can be helpful for comfort and even handling in some cases, but springing the car only via the wheels isn't a good idea, you really want to be able to control the wheels better than that.

newtboy said:

If they do well, perhaps this is a way to eliminate suspension in electric vehicles, reducing weight but keeping a smooth ride.

Son Buys Mom Her Dream Car

A Very Successfull Porshe Shoot - *Sigh*

Ruf Porsche Yellowbird on the Nurburgring. 8:05

siftbot says...

Tags for this video have been changed from 'ruf, porsche, 911, yellowbird, twin, turbocharged, turbo, 1987' to 'ruf, porsche, 911, yellowbird, twin, turbocharged, turbo, Nordschleife, 1987' - edited by rasch187

Top Gear Bloopers

We Need an Anti-McCain/Palin Channel (Politics Talk Post)

Farhad2000 says...

I don't think either party is perfect and it will never be perfect, I think electoral choices are like handing over the keys to a Porsche 911 GT, you can never trust the candidates to really do the right thing but that doesn't seem to be the majority seems to view it as, I mean I talked to an American here who really aligned with McCain because of his belief in God and Anti-Abortion stance... this is in Kuwait... Camp Arifjan and Ali Al Salem Air Base are 20 minutes away... the Iraqi border about 40 minutes. Another American I talked to said he was disappointed with the Republican party and was switching his alignment.

However with elections in America too often it seems like there is a year long process of deciding on the character and motivations of the person who gets the keys but after November everyone goes back to their lives its not like Congress or the House is really set up to oversee the presidents actions in any meaningful way (the economy? not even mentioning the war here).

Am hoping with the sudden rise of political blogs and the rise of places on both sides of the fence across the INTERNETz we will see much more noise being created and retroactively passed into the mainstream media, because they can't ignore stories that will make the rounds.

Which Sports Car Are You? (Wheels Talk Post)

Farhad2000 says...

"You are a Porsche 911!

You have a classic style, but you're up-to-date with the latest technology. You're ambitious, competitive, and you love to win. Performance, precision, and prestige - you're one of the elite, and you know it."

Personally I liked Audis and drive a BMW.

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