Adrian Sutil believes the new generation of F1 cars will make it tough for drivers to take Eau Rouge flat during the Belgian Grand Prix.

Eau Rouge is one of the iconic corners of the Spa-Francorchamps circuit, but the challenge has lessened in recent years as downforce levels have increased allowing drivers to take it flat out. However, the 2014 regulations have resulted in cars with less downforce and Sutil says Eau Rouge will become much more difficult again as a result.

"As Spa-Francorchamps is my favourite track, I am really looking forward to the race weekend," Sutil said. "The atmosphere is great as there are always many fans. With the new cars we will have more top speed and less grip, so it will be interesting to see how it will be to drive under these conditions.

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"In Spa I expect a highlight to the season regarding this year's championship. I have always achieved good results on this track and have some nice racing memories. Regarding the set-up, there are two variations: Either you are fast in sector two and relatively slow on the straights or vice versa. Both set-ups can result in the same lap time. I would rather tend to go more for top speed.

"Eau Rouge is one of my favourite corners, and this year it will be difficult to go flat out due to less downforce. Generally, there are several high speed corners I like in Spa. The double-lefthander (Pouhon), for example, is one of them. Every corner is nice to drive as they all have a nice "flow" to them."