Sales of the high-performing 550sx started. A mixed-flow pump, automatic rev limiter and self-circling mode made it an instant winner on the competition scene.

高性能550sx的销售开始。一个混流泵，自动转速限制器和自我盘旋模式，对比赛现场的即时赢家。

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It does have some interesting lights in the console to let you know you've hit the rev limiter, however.

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