The Eco mode (or Econ on some vehicles) is a fuel-saving feature offered by several manufacturers that instructs the engine computer to shift into a program that maximizes efficiency over performance.

Alongside the GR Supra and GR 86, the GR Corolla has, since debuting for the 2023 model year, been a go-to Toyota performance car for U.S. consumers who are set on buying from among the Japanese ...