Weekend review and results round-up

The developing story of News Corporation's interest in the sport sparked strong hints from the teams about how they might be involved in a reshaping of F1's ownership structure, more denials from Bernie Ecclestone, and comments from Jean Todt distancing the FIA from whatever might or might not unfold in the coming months.

Todt and Ecclestone's views were much in demand over the weekend, especially after the revelation that the Bahrain Grand Prix authorities now believe there is no reason why they cannot hold a rescheduled F1 race later this year.

On-track form was also of great interest with so many teams introducing updates at Istanbul. It was too soon to get too hopeful for Williams, whereas Ferrari and Fernando Alonso in particular were right back in the thick of it, while Mercedes had clearly found more pace but needed to deliver it consistently. The main topic of Mercedes-related conversation post-race was not the car's form, but Michael Schumacher's, after another awkward weekend for the seven-time champion.

Turkey also saw GP2 and GP3 kick off for 2011. Romain Grosjean took the early advantage in the former, but had a scrappy sprint race, which was won by Stefano Coletti. Nigel Melker and Alexander Sims shared the GP3 honours.

Away from Istanbul, Sebastien Loeb returned to the top of the World Rally Championship podium in Sardinia, Peugeot overcame a qualifying disaster to defeat Audi in what was effectively a Le Mans 24 Hours warm-up at Spa, and the JR Nissans led the World GT1 pack in Portugal.

Regan Smith could celebrate his maiden NASCAR Sprint Cup race win, but the Darlington event is probably going to be better remembered for Kevin Harvick and Kyle Busch's post-race bust-up.

The F1 sessions

Alonso fastest, Vettel crashes in FP1

Button pips Rosberg in second practice

Vettel hits the front in final practice

Vettel secures another pole in Turkey

Vettel takes commanding win in Turkey

The F1 headlines

Boullier: F1 must be a better product

Webber 'unlikely' to move team in 2012

Webber: Michael lacked support

Alonso says updates not a revolution

Schumacher says 2011 rules are 'mega'