Ed Wallace: 2016 Audi A6 FOX 4 News Dallas-Fort Worth Good Day Published September 4, 2015 8:46 AM CDT Share Copy Link Email Facebook Twitter LinkedIn Reddit Published September 4, 2015 8:46 AM CDT Car critic Ed Wallace reviews the 2016 Audi A6 with a turbo diesel engine. It's not an all new car, but the diesel engine is rated 38 mpg highway and so far Ed's been getting 40 mpg.