1 before and after weight
refers to the weight before and after the vehicle front axle and the rear axle of the vehicle body respective weight ratio borne. Car weight, usually at 50:50 is the most average, BMW is most proud of the front and rear weight ratio of 50:50.
but in real life we often encounter cornering, acceleration, etc., from a mechanical point of view, 48: 53 ~ 40: deal with the curve would be more flexible when accelerating between 60, but climbing to almost , contrary to the current heavy cornering will be very slow.