Audi runs R8 e-Tron prototype at 24 Hours of Le Mans

Audi runs R8 e-Tron prototype at 24 Hours of Le Mans 14.06.2010
Audi runs R8 e-Tron prototype at 24 Hours of Le Mans 14.06.2010
Audi runs R8 e-Tron prototype at 24 Hours of Le Mans 14.06.2010
Audi runs R8 e-Tron prototype at 24 Hours of Le Mans 14.06.2010
Audi runs R8 e-Tron prototype at 24 Hours of Le Mans 14.06.2010
Audi runs R8 e-Tron prototype at 24 Hours of Le Mans 14.06.2010
Audi runs R8 e-Tron prototype at 24 Hours of Le Mans 14.06.2010
Audi runs R8 e-Tron prototype at 24 Hours of Le Mans 14.06.2010
Audi runs R8 e-Tron prototype at 24 Hours of Le Mans 14.06.2010
Audi runs R8 e-Tron prototype at 24 Hours of Le Mans 14.06.2010

Add a Comment

Comments (9)

newest first oldest first

mohaon

amazing figures. Anyone knows the price tag?

June 14, 2010 6:28 pm

report abuse | reply

Xenicide

That torque makes me hot.

June 14, 2010 7:35 pm

report abuse | reply

Zonda Addict

That amount of torque is enough to spin the planet the other way!

June 14, 2010 11:43 pm

report abuse | reply

i was expecting a more outlandish bodywork for the e-tron ( like that R4 e-tron concept), even though this is a prototype. and btw, where is the R8 V12 TDI? shouldn't Lemans be a good way to capitalize on their TDI technology?

June 15, 2010 3:31 am

report abuse | reply

1 reply

Mikeado

I think they canned it, which is a shame because it would've been an awesome car. The engine sees service in the flagship Q7 though.

June 15, 2010 8:33 am

report abuse | reply

stylovale

the normal R8 has 1.gear(4,4)*axle(3,5)*430NM=6600Nm !!! 2.gear(2,7)*axle(3,5)*430NM=4000Nm 3.gear(1,9)*axle(3,5)*430NM= stil 2700Nm So guys don't get too crazy with the torque, because there is no need for a gearbox with e-drives. It's even very unefficient. Nobody needs 4000NM at the wheel driving 80mph except trucks

June 15, 2010 5:45 am

report abuse | reply

1 reply

THEBENCHMARK

And there it is folks. With that kind of torque you would expect to see the 0-100km times go by much faster, but at just under 5 seconds you can see that stylovale is right, it is not very efficient. If you had a gasoline engine that put out that kind of torque through a gearbox, assuming you had perfect traction you would see I'm guessing under 2 seconds. Not sure of any math to figure that out just guessing.

June 15, 2010 10:38 am

report abuse | reply

Mikeado

Isn't that torque figure measured somewhere other than the wheels - maybe the motors spinning? - and the actual torque at the wheels is far more normal?

June 15, 2010 8:32 am

report abuse | reply

stylovale

@Mikeado torque is always measured at the drive. Anything else would be nonsense. Else a normal sedan with 150Nm wouldn't even move. But EVs use often direct-drives. When it comes to EVs there's allways the huge torque. This is only marketing. The problem is torque*rps=power(kW) and power means batteryrange. For better efficiency you need to modulate voltage(rpm) AND current(Nm) this is tricky.

June 15, 2010 11:49 am

report abuse | reply