Audi Prologue Allroad Concept
According to Car & Driver, not one, but two plug-in versions of Audi's upcoming Q6 are likely to be offered:
"We’ve learned that Audi’s fully electric, “Model X fighting” Q6 crossover, which is confirmed to arrive in roughly three years, will be just the first version, and it will be joined by other iterations with plug-in hybrid and hydrogen-fuel-cell powertrains. These will come to market after the initial model."
So, we should see a pure electric Q6 and a plug-in hybrid Q6 within the next few years.
The Q6 will first be shown at the 2015 Frankfurt Motor Show this Fall. Audi claims that the pure electric version will have a range of over 310 miles.
Source: Car & Driver