Button, Alonso and Vandoorne on McLaren's 2017 line-up change

1:06Now Playing

Pre-Season Testing 2019: What are aero rakes?

2:09Now Playing

HIGHLIGHTS: Leclerc fastest on Day 2 of F1 Pre-season Testing

2:11Now Playing

Antonio Giovinazzi - 'I'm just enjoying the moment'

2:14Now Playing

Lando Norris - First day 'always going to be tough'

1:37Now Playing

Kevin Magnussen - 'Lots of little problems'