Complex sentence: A limit on testing in Formula One in 2007 and 2008 has restricted his involvement, but he is linked with a race seat at Formula One newcomers Campos Grand Prix for 2010.
Split into simpler sentences: A limit on testing in Formula One in 2007 and 2008 has restricted his involvement. For 2010, he is linked with a race seat at Formula One newcomers Campos Grand Prix for 2010.