Glock in overtaking doubt

The governing FIA have tried to increase overtaking in the sport by reducing aerodynamic performance and making cars less susceptible to turbulence when tailgating, as well as reintroducing slick tyres.

But Glock, 25, does not expect the measures to result in a more fluid field.

"There is a big rule change in Formula One this year with the aerodynamics and everyone hopes that it will be possible to overtake more," he told Eurosport.

"My feeling is it will not be a big change in terms of overtaking because it is still possible to brake quite deep into the corners with these cars - and especially with these tyres."

The German driver added that the slicks and other changes could result in a more level playing field among the teams.

"I think the slick tyres should be pretty good fun for the drivers and for the fans as well this year," he said.

"Maybe the most interesting thing for the fans is that there are so many new rules that every team had to start basically from scratch this season, so we could see the order change a bit.

"I am really looking forward to this season because it is very open and most teams have a chance to be fighting at the front."

Former GP2 star Glock, who is entering his second season in F1, feels that there are major differences in performance between last year's cars and the new breed.

"This year the cars feel quite different because we have less downforce but more grip from the slick tyres," he continued.

"Around the corners in the dry we actually have a little more grip than last year because the slicks make such a difference but in the wet - it is completely different and there is definitely less grip.

"I'm not sure if you can say it is better or worse, but certainly this year's car still has everything you expect from a Formula One car - that hasn't changed."

The new Toyota TF109 is looking good according to Glock, who drives alongside veteran Italian Jarno Trulli.

"When I compare the TF109 with last year's car I have a better feeling; my first impression is positive.

"The weather was quite bad at our first test and we have a mechanical issue as well which meant we didn't have a lot of running on a dry track.

"But the positive thing was I could feel no major problems. The car was stable under braking and felt good in the quick corners.

"I think we have a good starting point but the big question is where the other teams are. No-one knows at this moment."