Troubled. Difficult. Disastrous. On the face of it, if you'd asked somebody to describe the first proper test of the new McLaren-Honda Formula 1 partnership in Abu Dhabi this week in one word, they'd probably use one of those three adjectives.
The MP4-29H, which broke cover at a Silverstone filming day earlier this month, was beset by electrical problems that severely limited its running during post-season F1 testing at the Yas Marina circuit on Tuesday and Wednesday.
The car did not leave the garage until there were less than three hours of testing left on day one, and reserve driver Stoffel Vandoorne completed just two full installation laps either side of breaking down on the circuit.