The drag reduction of the notchback car platoon is the most.

阶背式轿车队列的平均减阻率最大。

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The drag reduction of the notchback car platoon is the most, that of the squareback is the next, and the fastback is the least.

阶背式轿车队列的平均减阻率最大，直背式次之，快背式最小。

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That extra attention to detail has already begun at the Ferrari factory as the team's engineers solved the problem with Alonso's faulty drag reduction system (DRS) -- an overtaking aid which increases the car's straight-line speed by flipping open the top flap of the rear wing -- the day after the Bahrain Grand Prix.

CNN: Ferrari boss: 'We have to be perfect'