Despite some of the storm clouds around the IndyCar Series at present, the championship opener in Brazil this weekend has an expanded grid, the highest quality top half of the field in several years and a gaggle of improving teams in great shape to interfere with Ganassi and Penske's dominance.

Foremost among the underdog contenders is Justin Wilson, who has moved to Dreyer & Reinbold Racing after giving Dale Coyne Racing its first ever victory in 2009. AUTOSPORT asked Wilson to share his views on his rivals' prospects as they prepare for battle.