2016 Supra SA 550 The Supra SA is the next milestone of an extraordinary determination to create the ultimate in premium tow boats. By combining soaring performance, refined engineering and bold design, the all-new SA embodies the very essence of the Supra mission and delivers each core element to create a boat with unprecedented range of performance, comfort and style. The all-new Supra SA is the class-leader in premium tow boat style, comfort and performance. - The All-New Supra SA