Since 2004, no car has truly rivaled the Toyota Prius hybrid for its combination of fuel economy and practicality. Hyundai finally answers the green car call with the Ioniq hybrid, with a Prius-like silhouette and a hatchback configuration. (The Ioniq is also offered as a plug-in hybrid or as a fully electric car.) Ultimately, the Ioniq manages to match the Prius for fuel economy in our tests, but the overall package is less compelling than the Prius.
Helped by a very aerodynamic body and low-rolling-resistance tires, the Ioniq uses fuel sparingly, tying the Prius with 52 mpg overall in our tests. The apparent tradeoff for getting such good fuel economy is long stopping distances: the Ioniq has among the worst braking performance we've seen in years.