If you're confused when someone says "Audi e-tron," and you're not sure which electric car it means, don't feel bad--we're confused too.
Audi may have more branded electric car concepts, prototypes, test vehicles, limited-production cars, and planned volume-production plug-in electric models than any other maker in the world.
The company has chopped and changed its plug-in lineup several times over the past few years, making it difficult to keep track. Some models have been postponed, others dropped, and others introduced.
Below is our full guide to all the e-tron models--plus the natural gas A3 g-tron--so you can keep track of Audi's increasing low-emission range.
Production e-tron models
2014 Audi A3 e-tron plug-in hybrid presentation, BerlinAudi A3 Sportback e-tron
2014 Audi A3 e-tron plug-in hybrid presentation, BerlinEnlarge Photo
Unlike the all-electric A3 originally unveiled under the e-tron banner, the production Audi A3 e-tron will be a plug-in hybrid, part of a range of plug-ins planned for the new Audi A3, sharing its chassis with the upcoming Volkswagen Golf.
It uses a turbocharged 1.4-liter engine, paired to a six-speed dual-clutch gearbox, with a 75 kilowatt electric motor sandwiched between the engine and transmission. Together, there's a full 204 horsepower and 258 pounds-feet of torque available--62 mph comes up in just 7.6 seconds, says Audi. Click on the links below for further details.
Audi A3 g-tron first drive, BerlinAudi A3 g-tron
Audi A3 g-tron first drive, BerlinEnlarge Photo
The A3 g-tron is the odd one out in this list, for it is neither hybrid nor electric.
Instead, it's an A3 running on natural gas--a much cleaner fuel than typical oil-based fossil fuels. Audi wants to make it even cleaner than that, by setting up a process that allows g-tron drivers to fill up on "e-gas", a clean natural gas derived from the methanation of hydrogen, powered by electricity from wind farms.
It sounds complicated, but reduces the net emissions of the vehicle to negligible amounts. Find out about the car and Audi's green natural gas plans below.