The Gram Prix allows up to four players to take part in a race around the bedroom circuit. The players, in their virtual reality headsets, find themselves sat in the seat of a car no bigger than a phone. The road they drive upon makes full use of the 3-dimensional space, weaving over, under and around gigantic environmental set pieces, such as a bed, a desk and structures built from toys, demonstrating VR be dramatically changing their perspective of what is normally an ordinary environment.

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Along the track, there are three different types of power-up. The first is a missile which can lock onto and home in on another racer. On impact, the target is stunned and cannot apply throttle or steer the car for several seconds. The second is an EMP which affects all other racers within a certain radius, disabling their dashboard elements and their ability to use nos (more on that later) for a short time. The final power-up is a sudden and powerful jolt of speed.

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On top of the third power-up, there is another mechanic that allows players to get a speed advantage over their rivals - nos. Attached to the side of the cockpit, players will find a glass tube filled with a faintly-glowing blue liquid. This is their nos. They will see it sloshing around as they drive and depleting as they spend it. Expending nos will generate an additional gradual acceleration over time, unlike the speed boost power-up which is spent all at once. This allows players greater control over their enhanced speed. Nos is regenerated slowly over time. This regeneration is faster for players at the back as a way of helping them to catch up. Nos can also be collected from refuelling pickups scattered throughout the track.