Window opening direction

R2F and F2R describe movement relative to the vehicle's front and rear. These illustrations are examples viewed from outside the left side of a van, with the front on the left.

R2F
← FRONT OF VANREAR OF VAN →
Rear-to-front openingThe opening pane slides from the rear of the vehicle towards the front.
F2R
← FRONT OF VANREAR OF VAN →
Front-to-rear openingThe opening pane slides from the front of the vehicle towards the rear.

Viewing the right side? Mirror the examples: the front will appear on the right. R2F still means towards the front; F2R still means towards the rear.

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