Furthermore?

The idea that Formula 1 racing circuits will switch to IndyCar racing if the current engines are not retained is obviously an idle threat, when one considers the IndyCar rules. They are as follows: “turbocharged engines (to allow for flexibility in power) with up to six cylinders and 2.4 liters of displacement, tuned to produce [...]

Source: http://joesaward.wordpress.com/2011/06/28/furthermore/

Jay Chamberlain Karun Chandhok Alain de Changy Colin Chapman