Force India's B-specification VJM08 looks set to make its race debut at the British Grand Prix in July now after suffering more delays.

After a late roll-out during the closing stages of pre-season testing, Force India had originally planned to bring a significant update to the Spanish Grand Prix, but this was then pushed back to the Austrian Grand Prix three races later.

However, according to Sergio Perez, it now seems he and Nico Hulkenberg will need to wait until the race after that at Silverstone to get their hands on the new car.

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"We are pushing very hard back in the factory to bring the package together," he said. "We would love to have the package for Barcelona, which didn't happen, but Silverstone will be the first time we have the new package."

Despite this, Perez is full of praise for his Force India team for maximising its opportunities to stay in good range of the mid-field runners given it is slipping in the development race.

"The first four races have been better than I expected. When you look at our position right now, we have done an amazing job. We are one point from Lotus, 12 points from Red Bull, so it has been a pretty good effort considering where the car is. If the upgrade comes we should be in a strong position to fight them back."