The Brawn driver leads the championship by 12 points but he said there was no guarantee he would keep his advantage at the next race in Spain on 10 May.

BBC: Button expects close title battle

The McLaren driver leads Ferrari's Felipe Massa by one point ahead of the forthcoming Singapore Grand Prix, with just four races remaining.

BBC: Hamilton eyes error-free run-in

Light taxes on capital gains are certainly an inducement, but the other obvious driver of the kind of delayed consumption that leads to company and job creation (neither can occur without the saving that Johnson and most economists oddly decry) is the value of the dollar.

FORBES: To Mount a Comeback, Obama Must Ignore Simon Johnson

Frenchman Stephane Peterhansel finished three minutes 44 seconds ahead of Nani Roma of Spain in the car section and now leads his fellow-Mini driver by 22 minutes and 49 seconds.

CNN: Ferrari's Alonso slams F1 testing rules