The 2018 Audi A3 e-tron is available as a 4-door, 5-seat hatchback. Starting at $39,500, the 2018 Audi A3 e-tron 1.4T Premium is powered by a 1.4L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated The top of the line 2018 Audi A3 e-tron Tech, priced at $40,650, is powered by a 1.4L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated