Lotus principal Eric Boullier has said that his team can challenge for victories after their impressive showing at the Hungarian Grand Prix.

Lotus were second and third on the Hungary podium on a track that Boullier believes is not their strongest, leading the team boss to claim that victories are on the horizon.

"At the end I'm very happy for the team because it's not a track that was suiting us on paper and it's a great result," Sky Sports News quote Boullier as saying.

"It proves as well that when we focus a little bit more on qualifying and we qualify better we can chase this win. So being in a position to chase the win in Hungary is very promising for the rest of the season."

Lotus have overtaken Ferrari and are now third in the constructors' championship.