Two-time Formula One champion and current McLaren-Honda driver Fernando Alonso announced in April that he would be switching his F1 seat for one day to participate in the 101st Indianapolis 500. 

The 35-year-old driver will race in a Honda-powered Andretti car branded as a McLaren. McLaren is rumored to be calling up recently retired F1 champ Jensen Button to replace Alonso for one race -- at the iconic Monte Carlo street course in Monaco.

On Wednesday, the Spaniard got his first taste of life on the oval track, showing off the Indy-themed orange livery and helmet for the brickyard race. 

Helmet.

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Alonso topped 222 mph during his Indy test drive. Andretti Autosport team owner Michael Andretti called his Indy debut drive "perfect" (per motorsport.com). You can watch his entire test run and press conference below:

The Indianapolis 500 is set for Sunday, May 28.