Last year, we heard the first details on a possible Audi diesel-electric supercar. It was supposed to be offered with a diesel engine combined with an electric motor for a total output of around 700 horsepower and at least 737 pound-feet of torque, allowing it to sprint from 0 to 60 mph in the 3-second range.

But as this sounded just too good to be true, new reports suggest that Audi dropped the idea of offering such a supercar. Instead, it appears that Audi’s focus is squarely on the production version of the Sport Quattro concept set to be unveiled in Frankfurt.

The model was rumored to be named Scorpion or R20 and was supposedly based on the R18 racecar. From the sounds of it, Audi has already prepared several design concepts for the new supercar, but now it has "bigger and more pressing issues to tackle."

This decision made a few Audi people very unhappy, but it’s not a big surprise to us, considering that electric technology is still in its early stages, as the company announced that another electric vehicle, the R8 e-tron, wouldn't make it to production.

Click past the jump to read more about the R8 V12 TDI - the concept that supposedly inspired the Scorpion.

Audi R8 V12 TDI

The R8 V12 TDI was unveiled at the 2008 Detroit Auto Show and was one of the most amazing concepts shown by Audi. It was powered by a 6.0-liter V-12 TDI engine that delivered a total of 500 horsepower and 737 pound-feet of torque.

Audi claimed it could sprint from 0 to 60 mph in just 4.2 seconds and hit a top speed of more than 186 mph.