Is there a menu?

By clicking on the button with the three lines on it on the HTC Vive controller, you'll open the menu. 

From here you can:

• Navigate to different vantage points (The Emotion Club, Pitlane, Track Cameras, or On-Board)
• Watch the televised broadcast video feed
• Check the temperature, pressure, and other details about the race
• Check which drivers are in the top five positions

Crucially, in the top right corner, you have:

• The guided mode toggle button
• The exit button

You will use the laser beam to point to the option you want, and click the trigger to select it.