Lotus deputy team principal Federico Gastaldi has teased a number of 'tasty drivers' are being lined up to replace the Haas-bound Romain Grosjean in 2016.

With Pastor Maldonado already confirmed in one seat by the team - which is expected to be sold to Renault for the 2016 season -, Lotus is currently seeking the successor to Grosjean, who was this week officially confirmed as joining the incoming Haas outfit, bringing his four-year tenure with the Enstone-based team to a close.

Though Gastaldi says it will be difficult to replace such a quality driver in Grosjean - who notched up ten podiums with Lotus -, he insists it has some enticing options available to it.

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"We know that we can now publically say bonne chance to Romain who is headed to pastures new next year. He's been a real asset to us over the years so we'll certainly miss him. We know we have Pastor confirmed for one seat and we know that there are quite a few tasty drivers available out there and we're doing everything to ensure that we've got a desirable race seat, which needs to be filled.

"What happens next is that there'll be a number of discussions in a number of places then at some point we'll have an announcement to make."

As for the potential options, Kevin Magnussen has emerged as a front runner for the seat, particularly after being passed over in favour of Jenson Button at McLaren again, while former Toro Rosso driver Jean-Eric Vergne and current Lotus test driver Jolyon Palmer have also been linked.