2019 Toyota Supra, BMW Z4 to feature four-cylinder base engine

It's been confirmed, the new fifth-generation Toyota Supra and third-generation BMW Z4 will be powered by both four- and six-cylinder turbocharged petrol motors. Road & Track has uncovered documentation from transmission maker ZF that details the drivetrain choices of both the new Supra and its twin-under-the-skin BMW Z4.