Formula 1: All cars and liveries for 2019 season

The new year in Formula 1 means new cars.

All 2019 cars were revealed over an 11-day period, with a bumper 'launch week' seeing nearly all teams rip the covers off their new challengers.

This season has seen a raft of driver changes, and with the new-for-2019 regulation changes, aerodynamics are expected to play a greater part in hoped-for better racing.

It has already been a big few weeks for the sport, with the season-opening Grand Prix in Melbourne to be preceded by the first-ever all-in season launch.

MORE: Everything you need to know about the 2019 Formula 1 season

Now, though, it's all about the new cars - and pre-season testing is now underway.

Read through to check out all 2019 cars.

HAAS

LAUNCH DATE: February 7 CHASSIS NAME: VF-19

From 2019, the American team will be rebranded as Rich Energy Haas F1 Team. This comes after the team signed a multi-year title sponsorship agreement with Rich Energy, a British energy drink brand. The driver pairing of Romain Grosjean and Kevin Magnussen will continue for a third straight season, and the team will be looking to big things after Haas ended the 2018 season fifth in the constructors' standings.

WILLIAMS

LAUNCH DATE: February 11 CHASSIS NAME: FW42

Williams will be hoping for a reset after a difficult 2018 that reaped just three points finishes. A reset they'll get, surely, with the infusion of reigning Formula 2 champion George Russell and fan favourite Robert Kubica, who will finally get his chance at the big time again following his horrific rally accident in 2011 that nearly took his life. Here's hoping the FW42 can do both drivers, and the team's history, justice. With a new title partner in global telecommunications company ROKiT, giving the team a financial lifeline, Williams will be hoping for the odd points finish in 2019 after a difficult pre-season testing period.

TORO ROSSO

LAUNCH DATE: February 11 CHASSIS NAME: STR14

Toro Rosso's fourteenth challenger will be steered by an all-new driver combination in 2019. Russian firebrand Daniil Kvyat returns to partner Alexander Albon. The Thai 22-year-old finished third in the 2018 FIA Formula 2 Championship, just behind George Russell and Lando Norris - both of whom will also gradutate to Formula 1 in 2019.

RENAULT

LAUNCH DATE: February 12  CHASSIS NAME: R.S.19

2019 will be Nico Hülkenberg's third season in yellow, and Daniel Ricciardo's first. The Australian's highly-publicised move from Red Bull has Aussie race fans holding their breath over if Renault can deliver a competitive package for the 2019 season. Regardless, team managing director Cyril Abiteboul believes his drivers can get the best out of the R.S.19:  "The added momentum of the Daniel-Nico partnership brings confidence to the team this season. I believe we have one of the strongest - if not the strongest - driver line-up on the grid." For Ricciardo, it's a chance to reset after a horror end to his 2018: "I was craving a change and everything I learnt in 2018 will make me a better version of myself in 2019. The difference will be a more mature person."

MERCEDES

LAUNCH DATE: February 13 CHASSIS NAME: F1 W10 EQ Power+

The five-time reigning champions - drivers' and constructors' - will look to extend their dominance in 2019, with five-time champ Lewis Hamilton joined by Valtteri Bottas for a third straight season. In 100 Grands Prix in the V6 hybrid era since 2014, Mercedes have sealed 84 pole positions and have taken 74 race victories. It's unprecedented dominance, but regulation changes for 2019 could bring them back to the pack. The last time it happened, Ferrari crept closer, but it wasn't enough. What will happen this season?

RACING POINT

LAUNCH DATE: February 13  CHASSIS NAME: RP19

Racing Point? What's that? Well, leading up to last year's Belgian Grand Prix, Force India were unsure if they would be able to race. The consortium that bought the team had to get the approval of 13 Indian banks. As approval happened after the deadline, the consortium purchased the old team's assets instead of buying the team itself. In 2019, Racing Point is now the name, and Lance Stroll - son of billionaire investor Lawrence, who headed the consortium - replaces Esteban Ocon, who will be a reserve driver for Mercedes. Meanwhile, Sergio Perez will remain in Silverstone for a sixth season.

RED BULL

LAUNCH DATE: February 13 CHASSIS NAME: RB15

A one-off testing livery got everyone excited, but then it was back to the old-and-trusted blue, red and yellow. 2016 GP2 Series champion Pierre Gasly was promoted from Toro Rosso for 2019 to join Max Verstappen after Daniel Ricciardo left for Renault. However, the biggest change for Red Bull will see the team use Honda power units in 2019 and 2020, after the Milton Keynes outfit signed a two-year deal last June. If the Honda does any better than it did with McLaren, the Red Bull package shouldn't be too bad.

MCLAREN

LAUNCH DATE: February 14  CHASSIS NAME: MCL34

After 2018, Fernando Alonso retired from Formula 1, and Stoffel Vandoorne was axed. Carlos Sainz arrives from Renault, and Formula 2 runner-up Lando Norris will become the first British driver at the team since Jenson Button. The MCL34 carries a Renault power unit for the second year running, and the team is desperate to jump onto the podium for the first time in five years. Yep, five years. It's been that long for McLaren. Will the MCL34 have it in it? Valentine's Day was the day to find out if McLaren could find the love again.

FERRARI

LAUNCH DATE:  February 15  CHASSIS NAME: SF90

Sebastian Vettel tried and failed in 2017 and 2018 to break Ferrari's decade-long championship duck. With Kimi Räikkönen off to Sauber - sorry, Alfa Romeo, Vettel may face his greatest test yet. The four-time world champion German turns 32 this season, and a driver ten years his junior, Charles Leclerc, has already been tipped to knock him off his perch. The Monégasque star dominated the 2017 FIA Formula 2 Championship, and in his first Formula 1 season in a solid Sauber package, he wildly impressed. Forget Max - it's only a matter of time before Leclerc mounts the great challenge of the new generation, and if given a strong Ferrari, he'll be one to watch.

ALFA ROMEO

LAUNCH DATE:  February 18  CHASSIS NAME: C38

Alfa Romeo was the title sponsor of the Sauber team for 2018 season. 2018 was an improved showing for the team, with Charles Leclerc impressing in his only year with the outfit. He's off to Ferrari, and in his place arrives 2007 world champion Kimi Räikkönen. Earlier this month, it was announced that the Sauber team would enter the 2019 season as Alfa Romeo Racing. The ownership and management structure will remain unchanged, but with two new drivers - Räikkönen and 2016 GP2 runner-up Antonio Giovinazzi - the sky's the limit. The team completed a filming day in the new car at Fiorano in Italy, Räikkönen doing some laps in a special Valentine’s Day-inspired livery. The team then revealed the 2019 colours ahead of testing in Barcelona.

FORMULA 1 2019: CAR LAUNCHES

FORMULA 1 2019: TESTING SCHEDULE