A considerable point is that following its model range from 1989-1994, the car has continued to influence the entire world of manufacturing. The Toyota Production System largely infiltrated American manufacturing around the time MIT's IMVP academic group coined lean manufacturing, as MBA John Krafcik used his Lexus-influenced knowledge learned to model Genesis, as Hyundai-Kia themselves used TPS to become benchmarks in modern day.[61] Within Toyota's own development efforts, the LS400's innovative advancements spread down through the company line-up. Through leveraging sister platforms, Toyota also used the economic conditions of currency differentials to trickle down the high standards set by the LS400.