How effective are rear wings in #WorldRX? - #RXtech ep. 2

In the second episode of our all new RX Tech series, Petter Solberg breaks down the different parts of the rear wing on his championship winning DS3 Supercar. Thanks to @JamezOsborne on Twitter for your question!

Got a question you want asking? Tweet us at @FIAWorldRX using the hashtag #RXtech!