"Red Bull" team director Christian Horner talked about the main problems of the car at the Marina Bay city race track in Singapore.
"This track will be one of the most difficult tracks for us this season. The performance of the car does not match its strengths and I think we have to pull out all the stops we can to maintain the winning momentum.
You can see that Ferrari, McLaren and Mercedes also seems strong, so this weekend could be very difficult.
Our forte was high speed turns as well as combination turns or combined entries. Unlike the 90-degree turns we saw in Monaco and Azerbaijan earlier this year, these were a big test for us," Horner was quoted as saying by Sky Sports.
