Do brake lines have to be same length? The brake lines in any car are going to vary not only in length from wheel to wheel but also in diameter from front to back. The length of the brake lines does not affect braking power. This is because the hydraulic pressure continues to be equal as long as the fluid levels are adequate and there is no air in the line. Do bigger brake lines make a difference? One is there is a relationship between brake line size and hydraulic pressure—there isn't. Brake lines are most often 3/16- or 1/4-inch...

Do all vehicles have black box event recorders? Popularly known as "black boxes," event data recorders (EDRs) have helped investigators solve the mysteries of airplane crashes for decades. Now they've become standard in almost every new car sold. Does a black box record an accident? Does a Black Box record an accident? Yes, a black box can see if you've had an accident and will record it. The black box measures G-force and so will recognise the force of an impact, if it's over a certain amount, on your car and this data can be used by your insurer to...