Formula One: Force India, Toro Rosso and Haas F1 challengers revealed

Sergio Perez and Esteban Ocon pulled the tarp off Force India's pink-and-white VJM11 on Monday, while Brendon Hartley and Pierre Gasly did the honours for Toro Rosso's STR13 at the Circuit de Catalunya. The new VJM11 featured a slight change, with a pink livery to sponsor BWT and more white on the nosecone, engine cover and rear wing and around the cockpit. Toro Rosso's car has a predominantly dark blue with a red bull on the engine cover. Hartley and Gasly both made their F1 debuts last season and have raced in nine grand prixs between them. (Video credit – SNTV)