system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why can most super cars barely break 200 mph yet land speed records back in the 1930s are over 300 mph?
gpt
because cars designed to break land speed records are purpose built for doing just that and only that...i.e. go down the bonneville salt flats in a straight line.  Supercars today are designed to go around tracks, keep the driver air conditioned, alive in the event of a crash, conserve fuel and be driven on regular streets.