Front crash prevention systems aren’t as effective at detecting large trucks and motorcycles and preventing collisions with them as they are with cars. Current systems reduce rear-end crashes with medium or heavy trucks by 38 % and motorcycles by 41%, compared with a 53 % reduction with passenger vehicles, but if the technology improved and was more widely implemented, an additional 5,500 crashes a year with trucks and 500 crashes with motorcyclists could be prevented.