Has brake technology changed that much since 1950's? Fastest you can stop is to brake just before the tires skid. Even 9" drum brakes can skid the tires. Next importance is if braking is balanced left to right and the rears are proportioned correctly to skid just after the fronts. Anti-lock braking is the major newer technology (~25 yrs old) that our cars don't have. It compensates for unskilled drivers who would skid when they should pump the brakes to avoid skidding. Studies show it doesn't work well in practice since many drivers are scared by the strange feel (like something is broken) and let up on the braking.