Scuderia Toro Rosso are to stick with their old car for at least one more race, autosport.com has learned, with a lack of spare parts forcing them to abandon plans to introduce their new STR3 at this weekend's Turkish Grand Prix.
The Faenza-based outfit had been scheduled to run their definitive 2008 contender at Istanbul for the first time, having used a modified version of last year's STR2 in the first few races of the season.
But a sizeable accident in the new car suffered by Sebastien Bourdais during pre-Spanish Grand Prix testing at Barcelona put back their already tight schedule to manufacture enough parts for an Istanbul debut.
After evaluating the situation last week, the team have decided that they will continue with their STR2B for the Turkish Grand Prix, with a decision on whether or not to introduce the new car in Monaco likely to be taken after this weekend.
Team co-owner Gerhard Berger told autosport.com at the Spanish Grand Prix that there were question marks about if it was sensible to introduce the new car on the streets of Monte Carlo, however.
"Monaco is a question - do you bring the new car there? If you're unlucky, you can end up with no car at the end of the week," he said. "Maybe there would be room to consider Canada. There would be no problem in getting parts to Montreal, but it's still the worst-case scenario."