Kubica in Spielberg
|Designer(s)||Paddy Lowe (Chief Technical Officer)|
|Engine||Mercedes M10 EQ Power+ 1.6 L (98 cu in) direct injection V6 turbocharged engine limited to 15,000 RPM in a mid-mounted, rear-wheel drive layout|
|Electric motor||Mercedes kinetic and thermal energy recovery systems|
|Transmission||Eight forward speeds and one reverse|
|Fuel||Petronas Primax, PKN Orlen|
|Lubricants||Petronas Syntium and Tutela|
|Tyres||Pirelli P Zero (dry)|
Pirelli Cinturato (wet)
Dicastal forged magnesium wheels: 13"
|Notable entrants||ROKiT Williams Racing|
|Debut||2019 Australian Grand Prix|
|Last event||2019 Japanese Grand Prix|
The Williams FW42 is a Formula One racing car designed by Paddy Lowe for the ROKiT Williams Racing team, to compete in the 2019 FIA Formula One World Championship. The car made its competitive debut at the 2019 Australian Grand Prix, driven by the reigning 2018 FIA Formula 2 Champion George Russell who was making his Formula One début; and Robert Kubica, who returned for his first racing season in Formula One since 2010, after recovering from life-threatening injuries suffered in a rally car accident in early 2011.
Development and testing
The Williams FW42 was forced to miss the first two days of pre-season testing as the car had not been completed in time. The car finally got out on track during the middle of the third day of testing, and its first shakedown was performed by Russell who put a lap count of 23. Throughout the remaining days of testing the team mostly conducted aero tests, with the drivers running a limited number of flying laps due to setbacks in the car's development, lack of parts, and the track time lost during the team's absence during the first two and a half days of testing. The car completed 567 laps during the tests, the fewest of any teams, and was unable to match the pace of other competitors. Its fastest time was 1.9 second slower than the quickest lap of testing posted by Sebastian Vettel driving for Ferrari, and over half a second behind the rest of the grid. 
The car arrived on the season opener in Australia with re-designed parts of the front suspension, bargeboards, and mirrors after those elements of the car were declared illegal by the FIA during the pre-season testing. During the first two practice sessions, the car presented itself with very slow pace, and was even further down the grid than during the winter testing. On Saturday there was no improvement, as both drivers qualified on the back of the grid, with Russell in front of Kubica who finished the session three seconds behind the McLaren of Carlos Sainz who got the 18th position. The race was a disaster for the team, as both drivers crossed the line adrift of the field with George Russell and Robert Kubica taking respectively the 16th and 17th spot, capitalizing only on three drivers who didn't finish the race. No success would follow during the first half of the season even with upgrades until Germany when they finally broke through when Kubica finished 10th and scored their first point, capitalising on 7 drivers that failed to complete the full race distance in the rain and after both Alfa Romeo drivers who finished 7th and 8th received severe time penalties for driver aids at the start of the race. At the Hungarian Grand Prix, Williams showed signs of progress after Russell narrowly missed out on Q2, and being able to compete in the race. The following round saw Kubica failing to qualify because of an accident and having to start from the pit lane while Russell started 14th on the grid because of multiple drivers taking grid penalties despite qualifying 19th. A similar situation saw both cars start in the top 15 for the first time in Italy because of the same reason. Their classified finish streak took a tumble when George Russell retired from a collision on lap 34 at the Singapore Grand Prix. Due to Russell crashing into the barriers following brake issues, and Williams deciding to retire Kubica in order to conserve parts, the following round in Russia saw their first double retirement since the 2018 German Grand Prix.
Complete Formula One results
(key) (results in bold indicate pole position; results in italics indicate fastest lap)
|2019||ROKiT Williams Racing||Mercedes-AMG F1 M10 EQ Power+||P||Robert Kubica||17||16||17||16||18||18||18||18||20||15||10||19||17||17||16||Ret||19||1*||10th*|
* Season still in progress
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- "Williams announces Kubica as race driver for 2019". www.motorsport.com. Retrieved 11 February 2019.
- Richards, Giles (18 October 2018). "Williams already looking to 2019 after bold signing of rookie George Russell | Giles Richards". The Guardian. ISSN 0261-3077. Retrieved 11 February 2019.
- "F1 testing 2019: Williams delay testing until Wednesday". 18 February 2019. Retrieved 19 February 2019.
- "Williams FW42 finally hits the track in testing". racer.com. 20 February 2019. Retrieved 2 April 2019.
- "Williams still waiting for parts to begin aero programme". www.motorsport.com. Retrieved 2 April 2019.
- GPfans.com. "F1 pre-season test results: Fastest laps, full lap count". GPfans. Retrieved 2 April 2019.
- "Williams modify F1 car design ahead of Australian Grand Prix - Formula 1®". www.formula1.com. Retrieved 2 April 2019.
- "Australian Grand Prix 2019: Friday Pace Analysis - Formula 1®". www.formula1.com. Retrieved 2 April 2019.
- "Qualifying report and highlights for the 2019 Australian Grand Prix: Hamilton takes record sixth straight pole in Melbourne - Formula 1®". www.formula1.com. Retrieved 2 April 2019.
- "F1 Australian Grand Prix 2019: Daniel Ricciardo, race results, standings, video, Valtteri Bottas upsets Lewis Hamilton". foxsports.com.au. 17 March 2019. Retrieved 2 April 2019.
- "Russian Grand Prix". www.williamsf1.com. Retrieved 3 October 2019.
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