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Improved Touring is a category of classifications for cars in amateur road racing defined by the Sports Car Club of America. The class is used by other sanctioning bodies with compatible rules, such as the International Conference of Sports Car Clubs. The classifications within the Improved Touring group define cars that will run together competitively in a road race. While cars in different classifications may be on the track simultaneously, the only positioning that matters is between cars of the same classification. The rules for the class include the General Competition Rules (GCR), a section of the SCCA rulebook that defines the basic setup and preparation for cars in any class of SCCA racing. Improved Touring cars are also subject to the rules in the Improved Touring Category Section (ITCS) of the rulebook, which define the specific classes and provide the class-specific rules. ==GCR Rules== The rules from the GCR applying to Improved Touring cars mostly involve safety and basic setup. The GCR specifies the construction, fabrication, and material used in installing a roll-cage, for example. It also explains the rules of the road during racing events, including the flags and right of way rules for passing maneuvers. Improved Touring is intended to provide a low barrier to entry by using a set of rules which limit modification of the cars while keeping the cars safe for competition. To this end, the cars are production-based models built after 1964 with a reasonable amount of limited modifications. The cars are run as-built by the manufacturer, except for modifications specifically allowed by the GCR or the ITCS. The Improved Touring category is broken into five classes based on the performance potential of the car. Those classes are Improved Touring A (ITA), Improved Touring B (ITB), Improved Touring C (ITC), Improved Touring S (ITS) and Improved Touring R (ITR). These basic rules make Improved Touring a popular class, since familiar and modern cars race together in groups which maximize the chances for a close finish. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「improved touring」の詳細全文を読む スポンサード リンク
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