Only two days of testing for new machine means Mexican thinks team is underprepared for F1 opener.
Sergio Perez completed his first miles in the VJM08, clocking 130 laps at the Circuit de Catalunya-Barcelona.
Sergio Perez completed a total of 121 laps - the second highest tally in the field.
Team completed a total of 66 laps with Pascal Wehrlein and Sergio Perez.
Force India is yet to finalise its driver line-up for the upcoming Barcelona Formula One test, but says both Nico Hulkenberg and Sergio Perez will be in action.
Battling against the ever-rising costs of competing in Formula One, beleaguered Force India enters a crucial phase in coming weeks.
Sergio Perez looks back on his solid 2014 as he anticipates an even stronger 2015.
With the 2015 Silly Season in full swing, here's a look back at who made the best moves going into this season.
With double points on offer, the team scored 28 points as Nico Hulkenberg raced to sixth place just ahead of Sergio Perez in seventh.
Vijay Mallya: "We enter the final race of the season with nothing to lose and an outside chance of claiming fifth place – so we will need to give it our all tomorrow."
The 24-year-old Mexican joined the team at the start of 2014...
Sergio Perez and Nico Hulkenberg completing a combined total of 116 laps.
Vijay Mallya sums up the team’s year...
Sergio Perez discusses the past, present, and future as he looks to end the 2014 season on high note with Force India.
Nico Hulkenberg raced to eighth place and his teammate Sergio Perez completed the race in P15.
Sergio Perez ended the day in P17.
With Nico Hulkenberg already signed up for 2015, all eyes at Force India are now on Sergio Perez.
Sergio Perez has been punished for his part in the opening lap crash at COTA.
Sergio Perez and Nico Hulkenberg retiring from the United States Grand Prix.
The field has already been dropped to just 16 participants.
The following is a transcript from Thursday's press conference.
Sergio Perez raced to tenth place and Nico Hulkenberg battled his way to P12 from P17.
Mercedes drivers in top two spots ahead of Button and Alonso. Marussia to run single car ‘out of respect’ for Bianchi.
Nico Hülkenberg: "We are all in the same boat when it comes to the weather and we will need to react to what the situation is.”