Here's the electric car Audi is building to take on Tesla (TSLA)

Audi Tesla's Model S and Model X are soon going to have some serious competition.   Last September, Audi revealed its all-electric e-tron quattro concept at the Frankfurt Motor Show. The SUV, which is slated to go into production by 2018, will have three electric motors, a range of 310 miles on a single charge, and quick charging capabilities.  Here's a look at some of the features in the e-tron quattro that we hope to see in the production version.  Like the e-tron concept, Audi will most li...