SAO PAULO, Brazil -- Kimi Raikkonen questioned the ease with which Pirelli's full wet tyres aquaplaned at the Brazilian Grand Prix, saying the conditions were "not that bad".

Raikkonen crashed out of the race on lap 20 after losing control of his Ferrari in standing water on the pit straight. The accident was the most dramatic of three big crashes caused by aquaplaning and resulted in the race being red flagged.

"They [the full wet tyres] are very easy to aquaplane with, it's not like it's raining a lot," he said. "We've said that many times, but it obviously also depends on the circuit and many things.

"If I compare to ten/twelve years ago, those tyres could cope with this kind of rain with no issues, no aquaplaning. The aquaplaning is the biggest issue, if we have a bit of standing water we get zero grip.

"It was not raining heavily but there's a lot of standing water and it's very easy to go off when we hit it. The reasons behind that are hard to say, but looking purely at the conditions they're not that bad."

Asked to explain his accident, Raikkonen said: "The uphill section was, at least for me there was a lot of aquaplaning, even on the turn before. I got aquaplaning and spun off.

"I almost got it back but then went off in a pretty bad place, I couldn't do anything about it. I didn't expect to get aquaplaning there and went off..."