The testing was done in Bahrain as part of the World Endurance Championship's "Rookie Test" day. Two, of Porsche's appearance in the top LMP1 class, its 919 Hybrid bowing out in favour of a Formula E campaign, albeit with records and Le Mans wins aplenty.
The end of the 2017 WEC season also marks the end of an era in the motorsport.
Which might suggest that Toyota would follow suit, with increasingly few LMP1 competitors left to race against (and no others being full factory efforts).
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The test comes a day after the final race of the world endurance season, the Six Hours of Bahrain, with Alonso then travelling to Abu Dhabi for the year's closing grand prix at Yas Marina.
Double F1 world champion Alonso, who competed in this year's Indianapolis 500, has set his sights on completing the so-called Triple Crown of motorsport.
So it's always been a question of "when" rather than "if" he'd get an endurance racing seat.
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It is understood that the deal was not confirmed until the last minute due to complications in getting approval from Honda - a partner of McLaren in F1 - to let Alonso drive a rival manufacturer's auto. And he's now short of choices if that's not going to be with Toyota... "They are very consistent throughout a stint which is a positive thing".
Alonso completed more than 100 laps over the course of his rookie test, setting a best lap of 1m43.013s, which was just six tenths slower than Toyota regular Mike Conway managed in the sister auto.
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Before the allegations emerged, Trump had backed current GOP Sen. " Roy Moore has been a public servant for decades in Alabama". Corfman was the first woman to publicly accuse Moore of sexual misconduct since his GOP nomination to Alabama's U.S.