 Complete the following phrase:  The season saw three significant innovations. The first was the arrival of unrestricted sponsorship, which the FIA decided to permit that year after the withdrawal of support from automobile related firms like BP, Shell and Firestone. Team Gunston, a South African privateer team, was the first Formula One team to paint their cars in the livery of their sponsors when they entered a private Brabham for John Love, painted in the colours of Gunston cigarettes, in the 1968 South African Grand Prix. In the next round at the 1968 Spanish Grand Prix, Lotus became the first works team to follow this example, with Graham Hills Lotus 49B entered in the Red, Gold and White colors of Imperial Tobaccos Gold Leaf brand. The second innovation was the introduction of wings as seen previously on various cars including the Chaparral 2F sports car. Colin Chapman introduced modest front wings and a spoiler on Graham Hills Lotus 49B at the 1968 Monaco Grand Prix. Brabham and Ferrari went one better at the 1968 Belgian Grand Prix with full width wings mounted on struts high above the driver. Lotus replied with a full width wing directly connected to the rear suspension that required a redesign of suspension wishbones and transmission shafts. Matra then produced a high mounted front wing connected to the front suspension. This last innovation was mostly used during practice as it required a lot of effort from the driver. By the end of the season most teams were using sophisticated wings. Lastly, the third innovation was the introduction of a full face helmet for drivers, with Dan Gurney becoming the first driver to wear such helmet at the 1968 German Grand Prix. He had helped to invent it with the Bell Helmets company and he had already used it at the 