Federico Gastaldi has described the current status of Renault's bid to purchase the Lotus team as part of its full-scale return in 2016 as an 'engagement', with the marriage of a formal deal seemingly on its way.

Almost six months after Renault first indicated a desire to upgrade its F1 involvement from engine supplier back to full manufacturer team status, its protracted buy-out of the Lotus looks to finally be reaching its final stages after the French firm signed a 'letter of intent' earlier this week.

The first formal indication of Renault's intentions with Lotus, the conclusion of the deal will ultimately see the manufacturer return to the Enstone base seven years after winding down its previous full factory effort in favour of a sale to the Lotus F1-owned Genii Capital group.

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Whilst it isn't clear exactly when the buy-out will be formalised, Lotus deputy team principal Gastaldi suggests talks are at least progressing in the right direction.

"It looks like we're engaged to be married again, which is interesting as we've had a few relationships together before! It's positive for the sport and it's positive for Enstone that a company with the history and prestige of Renault is looking to strengthen its role in Formula 1.

"It's true we've both experienced a few knocks over the years but we've also had some exceptional highs and that makes us all collectively exceptionally motivated to harness our resilience and show everyone what we can do."

Lotus has suffered a series of publically-displayed financial issues recent races, including being unable to use its hospitality unit in Japan and having its cars impounded in the wake of the Belgian Grand Prix. Despite this, it has notched up a podium result in 2015 - also in Belgium - and is currently classified a creditable sixth in the constructors' standings.