Blusens Avintia rider Julian Simon unlikely to have caused the slippery start to the MotoGP race - his bike suffered an off-camera electrical failure in the final corner.
Moto2 title favourite Marc Marquez wowed the crowds in Portugal as he swapped paint with Pons Kalex rider Pol Espargaro on the closing lap of Sunday's third round at Estoril.
Championship leader Marc Marquez leads the way for pole in the Moto2 Grand Prix at Estoril, with Thomas Luthi a close second and Britain's Scott Redding completing the front row.
With the final 125cc world champion Nico Terol moving up to Moto2, there will be a new world champion in the first year of the replacement Moto3 class, which starts in Qatar this weekend.
Hector Faubel will be one of the most experienced riders in the new Moto3 World Championship, the Spaniard starting his eleventh grand prix season when he lines up on the Qatar grid.
'We have everything clear ahead of the first race, we know what we are going to do... and the aim will be to adapt to the circuit as soon as possible' - Maverick Vinales
"During last season we investigated a lot of things about the RC212V and sometimes I thought we have to follow the Honda type of bike or engine"- Masahiko Nakajima, Yamaha.
Nico Terol and Johann Zarco, first and second respectively in last year's final 125cc World Championship, continued adapting their riding styles for 600cc four-strokes during the Jerez Moto2 test.
Repsol has announced it will back Alex Rins and Miguel Oliveira in the new Moto3 World Championship - and will thus be aiming to win riders' world titles in all three grand prix classes next year.
A lot has been written about Valentino Rossi's disappointing first season with Ducati in MotoGP this year, but it all boils down to the following stats...