The rise of large trucks and SUVs on American roads has led to an increase in pedestrian deaths, with these vehicles being more deadly due to their taller hoods and larger blind zones. An investigation found that about 200 to 400 pedestrians a year would not have died if vehicles had remained the same size over the past quarter-century. The trend towards larger vehicles has been driven by consumer demand and the fact that they are more profitable for automakers. This shift has also been influenced by marketing efforts that emphasize the perceived safety and prestige of larger vehicles.