In a demonstration of new technologies drive Audi showcased its e-tron Spyder concept drive, called “Le Mans vers le futur”. The e-tron Spyder concept features a 300 horsepower 3.0-liter twin-turbocharged diesel V-6 driving the rear wheels via a seven-speed dual clutch tansmission, while the front wheels are driven by two asynchronous electric motors giving an extra 87 horses and more importantly, 260 pound-feet of torque. The combination allows the concept to do 31 miles in estimated electric-only travel (limited to less than 37 mph), and have a quick 4.4 second run to 62 mph; the units can run concurrently or alone. 
Normally, 75 percent of the power is to the rear wheels with the remaining percentage driving the front. Top speed is limited to 155 mph, with a range estimated at 620 miles. The 3,197 pound e-tron Spyder was kept as svelte as possible for a hybrid with notoriously heavy battery stacks by using space-frame construction and lightweight materials such as aluminum and carbon fiber. Weight distribution is 50-50 and the setup will allow for spirited driving while still being "very comfortable". Audi claims an estimated 106.92 mpg for the European combined cycle. 
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