Listen to this article With two of the three GT500 manufacturers taking advantage of the aero freeze to introduce new models for 2022, the upcoming SUPER GT season looks set to be one of the most unpredictable in years. Nissan has turned heads with the all-new Z that replaces the venerable GT-R, and has sounded confident about its prospects. Honda has introduced fresh Type S bodywork for its NSX-GT and Toyota has also been busy honing its GR Supra following a slightly fortuitous title triumph last year. Official pre-season testing finally begins this week at Okayama, but since late January each manufacturer has been conducting unofficial running at Fuji Speedway, Suzuka, Motegi – and Okayama, which will also the opening round of the season next month. Some of these ‘maker’s tests’, as they are sometimes referred to, are more secretive than others. Sometimes they ta …