Despite his pride at a job well done , Tilke admits he 'll feel `` very nervous '' on the day of the race because the track until then remains a prototype . F1 chief Vladimir Putin backs Russian president Sochi 's way of working . Sochi hosts Russia 's inaugural grand prix in 2010 . Sochi GP promoter Hermann Tilke says about $ 330 million spent on circuit . Track site in 2010 ` ` was a big hole , '' says German track designer Hermann Tilke .
F1 chief Vladimir Putin backs Russian president Sochi 's way of working . Sochi hosts Russia 's inaugural grand prix in 2010 . Sochi GP promoter Hermann Tilke says about $ 330 million spent on circuit . Track site in 2010 ` ` was a big hole , '' says German track designer Hermann Tilke .