Minor changes to Singapore track for 2018
The length of the Singapore Grand Prix track has been reduced by two metres as the result of tweaks made to two of the Marina Bay Formula 1 circuit's corners.
Turns 16 and 17 - the right and left flick where Nelson Piquet Jr infamously deliberately crashed on the exit in 2008 after orders from his Renault team to trigger a safety car to help team-mate Fernando Alonso's strategy - have been realigned for this weekend's race.
The changes mean that the official length of the circuit has dropped from 5.065km to 5.063km (3.146 miles). The race distance is now 308.706km (191 miles).
As well as the minor change to Turns 16/17, the Marina Bay circuit has been resurfaced in several parts.
New asphalt has been laid down around Turn 1, between Turns 5 and 7, Turns 15 and 17, and around Turn 23.