Alex Albon has revealed he "spoke with a few teams in Formula E" while Indycar was also a "plan B" option before he signed an F1 deal with Williams last year.
Albon was forced into a reserve role sit with Red Bull in 2021 after losing his seat to Sergio Perez but returns to F1 this year as George Russell's replacement at Williams.
Prior to joining the F1 grid in 2019 with Toro Rosso, Albon had signed a deal to race as part of the factory Nissan Formula E outfit.
With his F1 future uncertain last year, the Thai-British driver put himself in the shop window to rejoin the all-electric series.
"2021 was actually a busier year for me than any other year that I have raced in which is pretty weird to believe but the hunger was there," explained Albon in a media briefing including GPFans.
"Of course, to get a seat or to not get a seat comes down to timing, it comes down to a lot of things but I know that on my side, I put everything towards it.
"I did have a plan A which was to be in Formula 1. Let's say the plan AA was also at that point to be with Williams and plan B, plan C were there."
Formula E was not the only option for Albon as he added: "I went to Indycar to have a look at it and spoke with a few teams in Formula E as well.
"Of course, just as a logical sense, you do have to keep those things in mind because you never know what happens. The market is so tricky, you just have to keep your options open.
"Plan A was obviously the one that was strongest in my heart and it was far above plan B and plan C but fortunately, towards the middle of the year, things started to look good and talks started to happen.
"That is a big thank you to Christian [Horner] and Doctor [Helmut] Marko but also to Jost [Capito] and everyone at Williams. We got it to happen and that was it."