The TFSI name is reserved exclusively for Audi's gasoline-powered cars. Gasoline-electric hybrids are dubbed TFSI ... All of Audi's other 45 TFSI models produce more power, but share the same 45 TFSI ...

All of Audi's other 45 TFSI models produce more power, but share the same 45 TFSI badge. The A4, A5, A6, Q5, and Q7 45 TFSI models all use a 2.0-liter inline-4 that produces 261 horsepower and 273 ...

So the only real way you will be able to tell whether you or your neighbour is driving an electric Audi A6 is if it has the e-tron badge. The others will be badged as TFSI for petrol, TDI for ...