Felipe Massa feels tweaks are needed at the Yas Marina Circuit to order to boost overtaking opportunities at the Abu Dhabi Grand Prix.
Passing proved to be very difficult during first two editions of the Abu Dhabi GP and the FIA introduced two DRS zones for this year's race, but drivers still found it hard to overtake.
Ferrari's Massa, who finished fifth in Sunday's race, believes organisers should consider making changes to the track.
When asked for about how well DRS worked, the Brazilian said: "It was interesting. I still believe that this is a difficult track for overtaking.
"In my opinion they need to change a little bit corner seven, maybe even make it wider like in India. But anyway, it was okay.
"It was much better than last year for sure. Using DRS and everything, I was able to fight and overtake Mark [Webber], but for some other cars it was more difficult to overtake."