Formula 1 gossip: Ricciardo, Kvyat, Red Bull, Horner, Williams

Daniel Ricciardo showcasing his Red Bull F1 car outside Vienna's City Hall

Red Bull boss Christian Horner believes drivers Daniel Ricciardo and Daniil Kvyat will both need nine engines this season rather than the four allowed. "We've used three in three races - so the chances of us staying within the limit of four is close to zero," he said . (Formula1.com) 

Formula 1 chief Bernie Ecclestone believes the sport could operate using two engine types to keep costs down for 2017. (Motorsport.com) 


Australian Daniel Ricciardo showed off his Red Bull F1 car to fans outside Vienna's City Hall, performing a series of stunts and speedy doughnuts. (Guardian)  
F1 aerofoil technology is being used to help make supermarket fridges more energy efficient, solving 'cold-aisle syndrome'. Williams has teamed up with Sainsbury's to keep cold air in the fridge and not be wasted in the customer aisle. (Auto Express) 

McLaren have not yet scored a point in four races this season

Mercedes' non-executive chairman Niki Lauda believes Lewis Hamilton will have a signed a new contract with the team by the Spanish Grand Prix on 10 May. (Blick -in Swiss) 
Eric Boullier, racing director of McLaren, says his team can be competitive again by the "end of next year." (New York Times) 
 
But drivers Jenson Button and Fernando Alonso believe the Monaco Grand Prix will give McLaren their best chance for a good result. (Motorsport.com) 
Daniel Ricciardo's season could hinge on a fax. The Red Bull driver is one engine away from a 10-place grid penalty, having used four engines so far this season. But Red Bull say all the teams agreed to use five engines per car during the season and it would just need a vote by fax from the strategy group to approve the rule change. (Fox Sports) 
 
Ferrari team principal Maurizio Arrivabene has revealed he sat down with Ferrari's designers in December and demanded they build a car that would better suit Kimi Raikkonen this year. (ESPN) 
Nico Rosberg has been enjoying an ice-cream with his dog Bailey. (Nico Rosberg Instagram) 

Lewis Hamilton goes jet-surfing

Fernando Alonso needs to "keep his nerve" at McLaren according to retired two-time F1 world champion Mika Hakkinen. (Express) 
Williams driver Valtteri Bottas says the team are making progress in their efforts to catch Mercedes and Ferrari after his fourth-place finish in Bahrain. (Motorsport.com) 
Lewis Hamilton tweeted a picture of himself jet-surfing at home in Monaco and wrote: "Perfect day on the water!! Love being home, but the water's still FREEZING #jetsurf." (Lewis Hamilton on Twitter) 
 
McLaren's Jenson Button has been training for this weekend's London Marathon in Hyde Park with his wife Jessica Michibata. He posted a picture on Instagram of the pair, writing: "London Marathon training with the missus in Hyde Park." (Jenson Button on Instagram) 
Red Bull driver Daniel Ricciardo has tweeted to says he is "looking forward to the European season" after his sixth-place finish in Bahrain. (Daniel Ricciardo on Twitter)