McLaren's racing director Eric Boullier says the team have resolved the issues that blighted their pre-season testing as Formula One gears up for the 2018 campaign.
Having switched from Honda to Renault power units for the new year, McLaren were hoping for a relatively trouble-free build-up to the first race in Australia this weekend.
That proved not to be the case, however, as their MCL33 challenger broke down five times during testing in Barcelona.
McLaren completed the fewest laps of any constructor but there were some signs of improvement towards the end of those sessions as Fernando Alonso offered a glimpse of what a fully functioning car might achieve.
"We didn't have the reliability we had hoped for in winter testing, but all the issues we faced have since been addressed back at the factory," Boullier said.
"There's a huge amount of work going on behind the scenes to ensure we leave no stone unturned in our quest to extract the maximum pace we can from our new package from the first race.
"Melbourne is a venue that the whole team loves going back to, to kick off the new season. It's a vibrant city, the fans are incredibly enthusiastic and there's that palpable 'back-to-school' feeling of anticipation, where nobody really knows the form book until the lights go out on Sunday.
"We're not expecting miracles to be worked overnight - far from it - but what we do know is that we'll give it our all this weekend."
And two-time world champion Alonso is feeling positive as he looks to put a torrid 2017 season - in which he collected just 17 points - behind him.
"Our car showed a lot of potential in winter testing and, although we know we still have a lot to work on, we've already learned a lot about the package and how all the new elements to this year's car work together," he said.
"Australia is its first real test, and we need to work hard all weekend to bring all the ingredients together.
"Nobody can ever predict how other teams will perform at the first race of the season and that all contributes to the excitement.
"Melbourne is a great track and, after what feels like a long winter, I'm really looking forward to seeing what we can do."
12. Dezember 2018
|Noble contract extended to 2021|
|Split with Sky is an opportunity, says Brailsford|
|Van der Burgh rolls back the years, two more medals for Hosszu|
|Maitland-Niles praises Sterling for speaking out|
|Life is tough for him right now - Celtic striker Griffiths to take time away from football|
|Froome: Team Sky keen to continue with new partner|
|Emery confirms Koscielny to play against Qarabag|
|Llorente keen on Athletic return|
|I love the guy - Pocock backs under-pressure Cheika|
|Fit-again Ozil in line for Arsenal return against Qarabag|
|Raheem Sterling named Premier League Player of the Month|
|Two more Ligue 1 games postponed due to unrest|
|Pace attack among India´s best ever - Arun|
|Premier League has fostered ´excessive aggression´ among fans, says Scudamore|
|Sharks back Flanagan amid NRL investigation|
|Not good for my recovery! Hoddle delights in Spurs´ Champions League heroics|
|Harris backing Starc to fire in Perth|
|No fears over Atleti´s second-place finish for Simeone|
|Clippers buckled under Raptors pressure - Rivers|
|Icardi: Inter deserved to qualify|
|Team Sky future unclear as Sky opt to end involvement in cycling|
|PSG had to change mentality - Thiago Silva|
|Rockets make change, pick up win over Trail Blazers|
|Everything´s easier when you´ve got Messi – Miranda|
|From George Cross to Arsenal – Montemurro´s rise to make Gunners great again|
|Koulibaly challenges Napoli to win Europa League|
|Raptors star Leonard out against Clippers, may miss matchup with Warriors|
|Butler opens up about heated Timberwolves practice|
|Spurs achieved ´mission impossible´, says Pochettino|
|Dembele stunner pleases Barca boss Valverde|
|Van Dijk lauds ´fantastic´ Alisson|
|Van Dijk´s tackle on Mertens worthy of red card – Ancelotti|
|Klopp ´would have paid double´ for Alisson|
|Klopp: I don´t care about Madrid revenge mission|
|Tension and anxiety got to Inter, laments Spalletti|
|Tuchel hails magnificent PSG as Red Star win seals last-16 spot|
|Mbappe admits frank discussions inspired PSG´s Champions League progress|
|Klopp: Napoli had no answers to outstanding Liverpool|
|Pochettino proud of ´massive, massive achievement´ for Spurs|
11. Dezember 2018
|Barcelona equal Champions League record|
|Composed and controlled Liverpool see off Napoli to progress|
|Tenerife back to winning ways, AEK beat Hapoel|
|Howedes ´hurt´ after emotional Schalke return ends in defeat|
|Kane ´buzzing´ over ´not bad´ draw at Barcelona|
|Robertson hails Alisson´s ´unbelievable´ save as Liverpool progress|
|Red Star Belgrade 1 Paris Saint-Germain 4: Neymar brilliance helps secure Group C top spot|
|Inter 1 PSV 1: Icardi header not enough for the Nerazzurri|
|Liverpool 1 Napoli 0: Superb Salah sends Reds through|
|Club Brugge 0 Atletico Madrid 0: Simeone´s men miss out on top spot|
|Barcelona 1 Tottenham 1: Lucas rescues Spurs late on to secure progress|
|Monaco 0 Borussia Dortmund 2: Guerreiro double snatches top spot from Atletico|
|Butler´s groin strain ´nothing significant´ – 76ers coach Brown|
|Woakes, Curran among leading lights at IPL auction|
|Blue Jays release five-time All-Star Tulowitzki|
|Mourinho: Professionals care more than the fans|
|Casillas reaches 100 Champions League wins|
|Expansion franchise Cincinnati sign Garza, send Kamara to Rapids|
|Manchester City sign United States goalkeeper Steffen for reported £7m|
|Schalke 1 Lokomotiv Moscow 0: Russians miss chance for Europa League reprieve|
|Galatasaray 2 Porto 3: Terim´s men into Europa League after penalty drama|
|Jackman leaves Dragons role|
|Tottenham boosted as Barcelona bench Messi|
|Mane and Henderson in Liverpool XI to face Napoli|
|Mourinho shoots down question over how to get the best from Pogba|
|Ronaldo to start as Allegri aims to avoid Champions League big guns|
|Odriozola: I´m in love with Benzema, he´s the best number nine in the world|
|Vikings fire OC DeFilippo after loss to Seahawks|
|Marcelino suggests Valencia open to Batshuayi departure|
|Bottas to make rally debut in title-winning M-Sport Ford Fiesta|
|Kovac dismisses Pavard speculation|