The effects of natural forces acting on a vehicle when accelerating and braking.
The weight is transferred to the rear of the vehicle.
The rear tyres gain grip.
The front becomes lighter.
The front tyres loose grip.
A vehicle is at its most stable
When travelling in a straight line with the engine just driving the wheels.
The weight is transferred to the front of the vehicle.
The front tyres gain grip.
The rear becomes lighter.
The rear tyres loose grip.
A rear wheel drive car under acceleration has an advantage because the tyres have more grip which assists acceleration.
A front wheel drive vehicle therefore is at a disadvantage as the front tyres loose grip.