Audi A3 Hatchback 30 Tfsi 2025. Inherently, this powertrain is smooth, refined and impressively efficient. The 2025 a3 earns an impressive 29 mpg city and 38 mpg highway fuel economy estimates from the epa;
And then the two 148bhp, 35 tfsi and 35 tdi models. Audi quotes a best of 54.3mpg for the tfsi, and 58.9mph for the tdi.