[Richard O'Clery]

CO2 was Ferarri's secret tyre gas? I must have missed the announcement before. Anyhoo, thanks to McLaren everyone knows it was Ferrari's secret. How many will use it in 2008? In fact, how many were using it in 2007 (with or without Ferrari information)?

But come on, CO2? - how mundane. Ne or Ar or some weird moisture repelling low thermal coefficient mixture would have been more what I expected. CO2 has been fully understood for donkeys' years. Maybe Mclaren were the only team not using it. Maybe their nitrogen tanks actually held nitrogen.