Williams FW32

The season started off with Barrichello finishing 10th at the Bahrain Grand Prix, while Hulkenberg made a mistake at turn 6 and skidded across the track, but recovered to 14th. In the next rounds, Barrichello finished 9th in Australia, while Hulkenberg was involved in a first-lap incident with Kamui Kobayashi, after the Japanese driver's front wing failed and sent him into the barrier, rebounding into the path of Hülkenberg.

At the third round in Malaysia, Hülkenberg made it to Q3 for the first time, qualifying in 5th place; out-qualifying teammate Barrichello for the first time. Barrichello stalled at the start due to an overheating clutch, while Hulkenberg started well. He looked set to finish eleventh in the race until Fernando Alonso blew his engine three laps from the end, thus promoting Hülkenberg to tenth place and with the new-for-2010 points system, Hülkenberg scored his first ever Formula One points. The car looked to be a good midfield contender, but in China the cars both finished in non-points positions.

At the Spanish Grand Prix, Barrichello was knocked out in Q1 for the first time. He claimed he had been unable to understand his engineer while out on the circuit. The Circuit de Catalunya has a history of radio-related problems. In the race, Williams gambled on a two-stop strategy for Hülkenberg, a mistake that shunted the German driver down the order where he was caught up in a duel with a struggling Rosberg. Barrichello benefited from Lewis Hamilton's late crash to score two points, finishing in 9th, despite starting 18th on the grid and equalled Ayrton Senna's record of highest-scoring Brazilian driver in Formula One. Williams felt the new Cosworth CA2010 was not good enough and demanded Cosworth to improve the new engine in every area.[6]

At the Monaco Grand Prix, Barrichello qualified 9th, and Hulkenberg 11th. Barrichello moved up to sixth position through the first corner, while Hulkenberg lost control in the middle of the tunnel and hit the wall, damaging his front left suspension and causing a safety car. Later, Barrichello had a suspension failure caused by hitting a loose drain cover coming out of turn 1, and crashed heavily up the hill. After crashing he threw the car's steering wheel out, as he was sitting in the middle of a 120 mph corner with his car on fire. The steering wheel was then run over by Karun Chandhok's Hispania. This was the first double non finish for Williams in the season.

At the Canadian Grand Prix, Barrichello qualified eleventh, narrowly missing Q3 but his anti-stall system kicked in at the start of the race. Kamui Kobayashi and Hülkenberg tangled on the run into the final corners. While Hulkenberg cut the chicane to avoid further contact, Kobayashi was not as lucky and he became the Wall of Champions' 2010 victim. Barrichello recovered well, but he later collided with Jaime Alguersuari when Alguersuari came across too late to cover his line, the damage blocking Barrichello's left brake duct.

At the European Grand Prix in Valencia, the Williams team brought big upgrades and ran their version of the F-duct. Hulkenberg and Barrichello qualified 8th and 9th respectively, with exactly the same time of 1:38.428. Barrichello made a good start, while Hulkenberg defended his 8th position from Mark Webber. Barrichello was running seventh when the safety car was deployed at the end of lap nine, and pulled straight into the pits. On lap 42, Hulkenberg's car started to emit blue smoke from the rear, but it soon stopped. Hülkenberg's right rear tyre delaminated on lap 50, causing damage to his car's exhaust system and became the race's final retirement, while Barrichello defended from Kubica to finish in a strong 4th place. After the race, both Barrichello and Hulkenberg were issued 5 second time penalties for speeding behind the safety car, but it did not affect Barrichello's finishing position because Kubica and Sutil, the two drivers behind him, also received 5 second time penalties. He became the highest-scoring Brazilian driver in Formula One history, overhauling Ayrton Senna's career tally of 614 points, which he had been tied with since Spain.

At Silverstone, Barrichello again made it into Q3, qualifying 9th. He had a strong race, and finished in 5th. Hulkenberg finished 10th.

At the Hungarian Grand Prix, Hulkenberg made it into Q3, with 10th, while Barrichello qualified 12th. Barrichello did not pit when the safety car came out. Williams had been attempting a similar strategy to BMW Sauber with Kamui Kobayashi in Valencia by having Barrichello pit late and charge back up through the field on super-soft tyres. But he was unable to preserve his position and slipped down the order to eleventh behind Schumacher. He then attempted to glide through the field with ease, but quickly became trapped behind his former teammate. Things came to a head late in the race when Barrichello was able to get close enough to pass Schumacher on the main straight, but Schumacher attempted to pin Barrichello to the wall and force him to back off. However, Schumacher's move came too late, and Barrichello was already alongside him when the Mercedes driver moved over. Barrichello very nearly made contact with the concrete pit wall and was forced across the pit exit, but took the place from Schumacher, who was placed under investigation by the stewards for dangerous driving. He was later issued a ten-place grid penalty for his actions, to be taken at the next race in Belgium. Meanwhile, Hulkenberg finished sixth from 10th on the grid, a career best.

Barrichello celebrated his 300th Grand Prix at the Belgian Grand Prix, but retired in damp conditions after colliding with Fernando Alonso's Ferrari on the first lap at the last chicane. Before the race, he was elected as Chairman of the Grand Prix Drivers' Association to replace the outgoing Nick Heidfeld.

In Singapore, the FW32 sported a new front wing, and Barrichello put this to good use to set the sixth fastest time in qualifying, although Williams technical director Sam Michael reckoned the car was fast enough to be a couple of positions higher. In the race, he lost positions to Robert Kubica and Nico Rosberg at the start. Hülkenberg and Petrov's wheels made contact and both drivers went off the circuit on the same lap; Hülkenberg managed to move ahead of Petrov. On lap 44, Hülkenberg, in ninth, made a mistake which allowed Massa to momentarily take advantage, but he fought back and retained ninth position. Massa then overtook both Hulkenberg and Massa, and on the last lap, Hulkenberg was fighting Sutil for 9th, but was held off, and finished 10th. Barrichello had a solid run to sixth at the finish.

At the new Korean Grand Prix , Barrichello qualified 10th and Hulkenberg 11th. In a wet race Barrichello suffered heavy tyre wear on the intermediates that he was running on. Kubica took eighth place from Hülkenberg by taking the inside line at the third corner. Hülkenberg then spun off the track on lap fifty-two and made a pit stop for new tyres because his engineer on the pit-wall told him one of his tyres had developed a slow puncture. In the closing stages of the race Barrichello was passed by Robert Kubica and Vitantonio Liuzzi, dropping him to seventh place at the finish, while Hulkenberg passed Alguersuari on the final lap to finish in tenth.

At Interlagos, with a track drying and no rain falling, the first part of qualifying eliminated the new teams and Adrian Sutil. In Q3, the top ten qualifiers saw a track drying so much that after a round of laps in intermediate tyres and times up to 1:16's, the teams opted for slick tyres. This tyre gamble proved successful for Nico Hülkenberg, who took advantage of the situation and qualified over a second ahead of the next quickest cars, taking his first pole position. This also gave the Williams team their first pole since Nick Heidfeld qualified on pole at the 2005 European Grand Prix, and the first pole for Cosworth since the 1999 French Grand Prix. Hülkenberg gained his first Formula One pole position, by 1.049 seconds over Sebastian Vettel. Barrichello qualified a strong sixth. Hulkenberg lost the lead on the first lap, and he eventually finished the race in eighth place, having been passed by drivers in more competitive cars. For Barrichello, after a delayed pitstop, his traditional bad luck on home soil returned when he suffered a puncture after briefly colliding with Jaime Alguersuari, costing him any chance of scoring points.

In Abu Dhabi Barrichello qualified strongly in seventh place, and maintained that position shortly after the start. However, when the safety car was deployed following Michael Schumacher's and Vitantonio Liuzzi's crash, many drivers like Robert Kubica, Vitaly Petrov and Nico Rosberg took advantage of this by pitting early. This had a negative effect as they did not need to pit again, and Barrichello finished outside of the points. Hulkenberg qualified 15th, and finished 16th. After the race, team boss Frank Williams confirmed that Hülkenberg would not be driving for the team in 2011, while Barrichello would be retained.

By the end of the season, they beat Force India in the constructors championship by 1 point, coming 6th with 69 points.