In the late 2010s, Ford decided to take on its European hot hatch rivals in an outrageous way. The vehicle tasked with the job was called the Focus RS, and it came roaring out of the gates with 350 horsepower on tap, all-wheel drive, and a huge chunk of rally pedigree under its belt. However, soon after it was released, RS owners noticed their engines were ingesting coolant at an alarming rate, and at first, Ford was silent on the matter.
