Vettel sure his luck must change

The Scuderia Toro Rosso driver was forced out of the Australian, Bahrain and Spanish Grands Prix following first lap collisions - with his late race retirement in Malaysia meaning he has not yet finished a race in 2008.

But despite the remarkable run of misfortune, Vettel is adamant there is nothing he can do other than keep plugging away.

"Usually I don't believe in luck, I only believe in hard work," Vettel told autosport.com. "We worked hard the last four races, and all winter, and it did not yet pay off. So we have to keep waiting I guess."

Vettel admitted to an element of disbelief in Spain when, having already being taken out of two of the first three races, he slid into a spinning Adrian Sutil at Turn Four.

"I shouted a big swearword into the radio," he explained. "Of course I was pissed off. Not disappointed - pissed off! But what can you do?"

Looking back on the accident in Spain, Vettel is clear that Sutil was entirely to blame for the crash.

"It was quite brainless I think to attack David, there was no way. He cut the grass completely and then he spun.

"He was battling with Sebastien (Bourdais), who was running around the outside and lucky he didn't get hit because obviously Adrian was spinning to the outside.

"I decided to go to the inside, I was braking and turning right as much as I could, but then unfortunately Takuma (Sato) hit me in the back and gave me another acceleration - and I was unable to get past. You don't have to blame Sato because there was no way he could read the situation from another row behind."

But Vettel's hopes that the introduction of Toro Rosso's new cars would help lift him further up the grid and away from trouble on first laps have been dashed, with the debut of the STR3 put back because of a lack of spare parts.

The German admits that things will likely remain tough for him until the new car comes on tap.

"It is going to be tough (in Turkey) without the new car, but we have to do the best we can.

"I like the Istanbul track, but you see it (the situation) is becoming more and more difficult. It brings us into positions on the grid where it is very difficult to get the race started. Partly you have to blame us as well, but when you are in that position it becomes more difficult to survive the first lap."