As sport's gender gap narrows, Jennie Gow investigates whether the use of grid girls is an outdated sexist relic.

As the popularity, participation and coverage of women's sport continues to grow, Jennie Gow investigates whether the use of grid girls is a sexist, outdated relic in 2017.

Hear the thoughts of the models themselves alongside F1 drivers, team and circuit bosses. Plus find how the issue is being considered in boxing, cycling and darts.

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