He tweeted on his twitter page:
Petronas signs with Mercedez GP. Words fail me.
Mercedez a good team, no doubt but what Lotus is doing is completely ground breaking+brave and Petronas not seeing that fills me with shame.
I think Petronas has made a great deal with the defending Constructer Champion which will beneficial for both side. Petronas see Lotus' breaking plus brave but ability plus safe are rather the terms for the long-standing involvement in Formula One Petronas looking for.