2089kw German Factory Supercar WTF ?

[sudszy]

Originally Posted by XR6menace

LOL from elsewhere...

0 to 100km/hr in 0.9 seconds would take an acceleration of 30.9 metres per second squared (3.2g).

For a 1000kg car this is a launch force of 30,900 Newtons. For a slick tyre in the dry the maximum friction factor is 0.9.

The maximum launch force available for a 1000kg car on slick tyres in the dry is about 0.9*1000*9.81 = 8829 Newtons.

The fastest 0-100km/h time for this 1000kg car is therefore 3.2 seconds.

It would have to weigh nearly 3500kg to accelerate to 100km/hr in 0.9 seconds. Try going around a corner in that tank.....

Return comment ...

0.9 friction lol.

Top fuel cars get to a hundred miles an hour in a car length and under a second so they must weigh FOUR HUNDRED TONNES. What sort of stupid are you?

Yes, both comments miss the mark.

Drag cars have tyres with coefficients of friction in the 2-2.5 range, 0.9 is ultimately just a high performance passenger car tyre. If the drag car was powered by an electric motor of the same power(we are talking 2000hp+ here), it would be be only able to achieve ~half the acceleration of one with a fuel motor.

Reason being: the vertical thrust from the exhaust gases of the fuel motor provide enough thrust to ~double the force over the back wheels, doubling the force that the tyres can provide before slipping at launch, but not having to accelerate double the mass, hence getting the accel into the 5g region.

so 100km/h in 0.9 secs, requires 3.2g of accel or tyres with coefficient of friction of 3.2(nope they dont exist), and unless the thing has some pipes pointing skywards, I say hoax, or perhaps its got a jet or rocket engine attached!