Simplify the following text for a Grade 5 native English-speaking person.
Original: The DFV won on its first outing , at the 1967 Dutch Grand Prix in the hands of Jim Clark , fitted to a Lotus 49 , and from 1968 was available for purchase to any F1 team that wished it .
Simplified: The DFV won on its first outing , at the 1967 Dutch Grand Prix . Jim Clark drove a Lotus 49 with the DFV engine .