Wasn't it previously stated by a Lotus' guy (I think Grosjean, but could easily have been an other person of the team) that they were so bad in the rain last year because their RW didn't work in wet conditions and that they solved it now?
Allison believes Lotus has genuine pace and will continue to challenge at the front
So it looks like, contradictory to earlier comments from Lotus, the E21 has indeed inherited the wet track "qualities" of last years car. The majority of the races will be dry, but this can significantly harm their title campaign in a season that very likely will be decided by only few points. Is there any other team on the grid that's so weather-dependant?
I also remember Grosjean (and Kimi?) saying during testing that the car was much better in the rain.
That got my hopes up quite a bit, but then, a few drops of rain and it seems even worse than last year.