The Kingboss 205/50ZR16 is a budget ultra-high-performance (UHP) tyre, usually sold under models like Kingboss G33 / G68 Sport / similar rebranded Chinese performance tyres depending on the importer.
It’s used on small sporty cars and hatchbacks like:
VW Golf (older trims)
BMW 1 Series (some setups)
Mazda 3 / Axela
Toyota Auris / RunX
Subaru Impreza (older)
Ford Focus (older sport trims)