Jets are supremely simple. You only need one moving part!

See that strap on the door sill? That's the manual door release in case the electric door switch fails for some reason.

Brakes are carbon reinforced carbon and those work better if they get hotter. Just like F1 car brakes.

I know, but that's not what's claimed.

Before the original Golf GTI you had practical cars and sporty cars, but Volkswagen decided to go where no one had gone before and combine the two, effectively creating the hot hatch.

In 1955, people weren't asking for a DS because nobody dared asking manufacturers the preposterous question to make car that was better in every single way than all other cars currently available.

Unibody, discs and independent suspension in 1968. Might've been a shock in less civilised parts of the world.

no manufacturers are seriously considering their use, which is why they aren't used.

Both the tweel and a radial have the same thread. And I have no idea where you get the notion that the net loss is not significant.

Mil Mi 26. Largest production helicopter. Chinook for scale.

It seems you are correct. I was always under the impression that the steel belts in a tire also covered the sidewalls.

Lancia Flaminias had them. Citroen DS, SM, 116 series Alfa, Alfa 75/Milano, Jag's with the early Jag IRS and probably more.

And then you just had a shorter service interval. Which was still less frequent than motor oil changes.

Thanks, almost forgot about the C5. Crying shame it isn't used on the DS5.

Modern tire technology is amazing, but that doesn't change the fact that tires deflate over time and are rendered useless if you drive over, say, a nail. I hope the auto industry invests more in tweels, if for no other reason than they look cool as hell.

I'm sorry to inform you you are totally wrong. It is by all accounts quite reliable.

The engineers aren't lacking. The engineers just aren't being put to work on the outside of the car design. Car aerodynamics is making sure the brakes don't overheat and a bit of wheel well flow. Perhaps underbody if the mfg decides there's budget for that.

The land speed pencil shaped cars are pencil shaped because that's the easiest way to put in all the engine volume you want while keeping the frontal area down. It doesn't do wonders for the Cd, since that increases due to skin friction forces as you make your pencil longer. Also, you need to break a land speed, so…

Current automotive aerodynamics are a lip service at best.

Just because you've got a capslock key doesn't mean you understand how aerodynamics work. Just because it looks like a jellybean doesn't mean your car is aerodynamically efficient.