McLaren Honda -Two Days Testing – Two Power Unit Changes.  McLaren Honda have had to change their power unit in just two days of testing in Barcelona.

Alonso suffered an ‘oil system issue’ yesterday, only to miss out on the second half of testing on day one.

Vandoorne completed 29 laps today, before the MCL32 Honda powered unit lost power.

Valuable testing will be missed by both drivers.  It is unclear if both issues on day one and day two are related.