Yokohama BluEarth & Selected Geolandar Tyres - Buy 3 Get 1 Free
Bridgestone Ecopia or Potenza Tyres - Buy 3 Get 1 Free Part of this deal
Right now, when you buy 3 Bridgestone Ecopia or Potenza tyres, you'll get the 4th one free. All Tyre prices include fitting, balance, tubeless valves, GST & tyre disposal.
pretty much a standard offering nowadays, across all tyre retailers.
(bought 4 using similar deal back in Dec).