The Aston Martin Valkyrie has a 6-point harness for a reason. The lateral g-force of this road-legal car is about 3.3g. The braking force is 1.9g. So every point of that harness is carefully placed to weld you in position and stop you sliding out of the seat. It might be important to put that into some kind of context. Lateral g-force is a measure of the acceleration when changing direction horizontally.

That is, it’s the sidewards acceleration of the car, felt in corners as you turn. The higher the g, the more mechanical grip the car has during cornering. The better the grip, the better the performance. Most road cars produce between 0.6 and 0.7g. Top-of-the-range sports cars tend to top out at around 1.1g. The Aston Martin Valkyrie produces 3 times that. More than 3 times the force of gravity raining down across every pore of your person. The wheel engraves new feeling into your palm. The contours of the seat cosset your body with more closely-wrapped intensity. You weigh three times more than you do normally. It feels like you’re flying and at the same time you’re heavier than you’ve ever been before.