What kind of car is the 2021 Subaru WRX? What does it compare to? The 2021 Subaru WRX and its STI spin-off are performance four-doors with plain wrappers and hot turbo filling—a Crunch Wrap minus the heartburn. A turbo flat-4 sits in the middle of standard all-wheel drive to crank out cornering prowess by the mile, paired with another...