2013 Canadian Grand Prix practice session photo Photo 5 of 107
Force India's Paul di Resta was the surprise pacesetter in an opening practice session at the 2013 Canadian Grand Prix on Friday that was marked by continually changing track conditions.
Circuit Gilles-Villeneuve, Montréal, Québec, Canada June 7, 2013, 1 p.m. Mark Webber from Infiniti Red Bull Racing settles into his car. Auto123.TV 2013 Photographer: Philippe Champoux | © auto123.com